bifunctional cytochrome P450/NADPH--P450 reductase functions as a functions as a fatty acid monooxygenase that catalyzes the hydroxylation of a range of medium to long-chain fatty acids, with a preference for long-chain unsaturated and branched-chain fatty acids over saturated fatty acids, and also displays a NADPH-dependent reductase activity in the C-terminal domain, which allows electron transfer from NADPH to the heme iron of the cytochrome P450 N-terminal domain
cytochrome P450 family 102, subfamily A, polypeptide 1, also called bifunctional cytochrome ...
28-456
0e+00
cytochrome P450 family 102, subfamily A, polypeptide 1, also called bifunctional cytochrome P450/NADPH--P450 reductase; Cytochrome P450 102A1, also called cytochrome P450(BM-3) or P450BM-3, is a bifunctional cytochrome P450/NADPH--P450 reductase. These proteins fuse an N-terminal cytochrome p450 with a C-terminal cytochrome p450 reductase (CYPOR). It functions as a fatty acid monooxygenase, catalyzing the hydroxylation of fatty acids at omega-1, omega-2 and omega-3 positions, with activity towards fatty acids with a chain length of 9-18 carbons. Its NADPH-dependent reductase activity (via the C-terminal domain) allows electron transfer from NADPH to the heme iron of the N-terminal cytochrome P450. CYP120A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
:
Pssm-ID: 410691 [Multi-domain] Cd Length: 430 Bit Score: 749.01 E-value: 0e+00
Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases ...
480-1062
0e+00
Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases [Nucleotide transport and metabolism, Inorganic ion transport and metabolism]; Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases is part of the Pathway/BioSystem: Cysteine biosynthesis
:
Pssm-ID: 440138 [Multi-domain] Cd Length: 561 Bit Score: 643.35 E-value: 0e+00
cytochrome P450 family 102, subfamily A, polypeptide 1, also called bifunctional cytochrome ...
28-456
0e+00
cytochrome P450 family 102, subfamily A, polypeptide 1, also called bifunctional cytochrome P450/NADPH--P450 reductase; Cytochrome P450 102A1, also called cytochrome P450(BM-3) or P450BM-3, is a bifunctional cytochrome P450/NADPH--P450 reductase. These proteins fuse an N-terminal cytochrome p450 with a C-terminal cytochrome p450 reductase (CYPOR). It functions as a fatty acid monooxygenase, catalyzing the hydroxylation of fatty acids at omega-1, omega-2 and omega-3 positions, with activity towards fatty acids with a chain length of 9-18 carbons. Its NADPH-dependent reductase activity (via the C-terminal domain) allows electron transfer from NADPH to the heme iron of the N-terminal cytochrome P450. CYP120A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410691 [Multi-domain] Cd Length: 430 Bit Score: 749.01 E-value: 0e+00
Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases ...
480-1062
0e+00
Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases [Nucleotide transport and metabolism, Inorganic ion transport and metabolism]; Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases is part of the Pathway/BioSystem: Cysteine biosynthesis
Pssm-ID: 440138 [Multi-domain] Cd Length: 561 Bit Score: 643.35 E-value: 0e+00
These bifunctional proteins fuse N-terminal cytochrome p450 with a cytochrome p450 reductase ...
680-1062
1.38e-162
These bifunctional proteins fuse N-terminal cytochrome p450 with a cytochrome p450 reductase (CYPOR). NADPH cytochrome p450 reductase serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via FAD and FMN. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99802 [Multi-domain] Cd Length: 384 Bit Score: 484.45 E-value: 1.38e-162
sulfite reductase [NADPH] flavoprotein, alpha-component; This model describes an ...
495-1062
5.12e-97
sulfite reductase [NADPH] flavoprotein, alpha-component; This model describes an NADPH-dependent sulfite reductase flavoprotein subunit. Most members of this family are found in Cys biosynthesis gene clusters. The closest homologs below the trusted cutoff are designated as subunits nitrate reductase.
Pssm-ID: 273882 [Multi-domain] Cd Length: 597 Bit Score: 319.72 E-value: 5.12e-97
Cytochrome P450; Cytochrome P450s are haem-thiolate proteins involved in the oxidative ...
9-428
1.37e-82
Cytochrome P450; Cytochrome P450s are haem-thiolate proteins involved in the oxidative degradation of various compounds. They are particularly well known for their role in the degradation of environmental toxins and mutagens. They can be divided into 4 classes, according to the method by which electrons from NAD(P)H are delivered to the catalytic site. Sequence conservation is relatively low within the family - there are only 3 absolutely conserved residues - but their general topography and structural fold are highly conserved. The conserved core is composed of a coil termed the 'meander', a four-helix bundle, helices J and K, and two sets of beta-sheets. These constitute the haem-binding loop (with an absolutely conserved cysteine that serves as the 5th ligand for the haem iron), the proton-transfer groove and the absolutely conserved EXXR motif in helix K. While prokaryotic P450s are soluble proteins, most eukaryotic P450s are associated with microsomal membranes. their general enzymatic function is to catalyze regiospecific and stereospecific oxidation of non-activated hydrocarbons at physiological temperatures.
Pssm-ID: 395020 [Multi-domain] Cd Length: 461 Bit Score: 276.08 E-value: 1.37e-82
Cytochrome P450 [Secondary metabolites biosynthesis, transport and catabolism, Defense ...
38-456
3.60e-81
Cytochrome P450 [Secondary metabolites biosynthesis, transport and catabolism, Defense mechanisms]; Cytochrome P450 is part of the Pathway/BioSystem: Biotin biosynthesis
Pssm-ID: 441727 [Multi-domain] Cd Length: 400 Bit Score: 270.23 E-value: 3.60e-81
FAD binding domain; This domain is found in sulfite reductase, NADPH cytochrome P450 reductase, ...
679-883
7.18e-40
FAD binding domain; This domain is found in sulfite reductase, NADPH cytochrome P450 reductase, Nitric oxide synthase and methionine synthase reductase.
Pssm-ID: 395540 [Multi-domain] Cd Length: 219 Bit Score: 147.10 E-value: 7.18e-40
cytochrome P450 family 102, subfamily A, polypeptide 1, also called bifunctional cytochrome ...
28-456
0e+00
cytochrome P450 family 102, subfamily A, polypeptide 1, also called bifunctional cytochrome P450/NADPH--P450 reductase; Cytochrome P450 102A1, also called cytochrome P450(BM-3) or P450BM-3, is a bifunctional cytochrome P450/NADPH--P450 reductase. These proteins fuse an N-terminal cytochrome p450 with a C-terminal cytochrome p450 reductase (CYPOR). It functions as a fatty acid monooxygenase, catalyzing the hydroxylation of fatty acids at omega-1, omega-2 and omega-3 positions, with activity towards fatty acids with a chain length of 9-18 carbons. Its NADPH-dependent reductase activity (via the C-terminal domain) allows electron transfer from NADPH to the heme iron of the N-terminal cytochrome P450. CYP120A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410691 [Multi-domain] Cd Length: 430 Bit Score: 749.01 E-value: 0e+00
Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases ...
480-1062
0e+00
Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases [Nucleotide transport and metabolism, Inorganic ion transport and metabolism]; Flavoprotein (flavin reductase) subunit CysJ of sulfite and N-hydroxylaminopurine reductases is part of the Pathway/BioSystem: Cysteine biosynthesis
Pssm-ID: 440138 [Multi-domain] Cd Length: 561 Bit Score: 643.35 E-value: 0e+00
These bifunctional proteins fuse N-terminal cytochrome p450 with a cytochrome p450 reductase ...
680-1062
1.38e-162
These bifunctional proteins fuse N-terminal cytochrome p450 with a cytochrome p450 reductase (CYPOR). NADPH cytochrome p450 reductase serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via FAD and FMN. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99802 [Multi-domain] Cd Length: 384 Bit Score: 484.45 E-value: 1.38e-162
NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase ...
678-1062
1.61e-122
NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via FAD and FMN. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99801 [Multi-domain] Cd Length: 416 Bit Score: 381.61 E-value: 1.61e-122
Cytochrome p450- like alpha subunits of E. coli sulfite reductase (SiR) multimerize with beta ...
681-1062
2.12e-97
Cytochrome p450- like alpha subunits of E. coli sulfite reductase (SiR) multimerize with beta subunits to catalyze the NADPH dependent reduction of sulfite to sulfide. Beta subunits have an Fe4S4 cluster and a siroheme, while the alpha subunits (cysJ gene) are of the cytochrome p450 (CyPor) family having FAD and FMN as prosthetic groups and utilizing NADPH. Cypor (including cyt -450 reductase, nitric oxide synthase, and methionine synthase reductase) are ferredoxin reductase (FNR)-like proteins with an additional N-terminal FMN domain and a connecting sub-domain inserted within the flavin binding portion of the FNR-like domain. The connecting domain orients the N-terminal FMN domain with the C-terminal FNR domain.
Pssm-ID: 99796 [Multi-domain] Cd Length: 360 Bit Score: 312.62 E-value: 2.12e-97
sulfite reductase [NADPH] flavoprotein, alpha-component; This model describes an ...
495-1062
5.12e-97
sulfite reductase [NADPH] flavoprotein, alpha-component; This model describes an NADPH-dependent sulfite reductase flavoprotein subunit. Most members of this family are found in Cys biosynthesis gene clusters. The closest homologs below the trusted cutoff are designated as subunits nitrate reductase.
Pssm-ID: 273882 [Multi-domain] Cd Length: 597 Bit Score: 319.72 E-value: 5.12e-97
NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase ...
680-1062
5.50e-96
NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via FAD and FMN. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99803 [Multi-domain] Cd Length: 382 Bit Score: 309.59 E-value: 5.50e-96
cytochrome P450 family 132 and similar cytochrome P450s; This subfamily is composed of ...
40-446
2.26e-94
cytochrome P450 family 132 and similar cytochrome P450s; This subfamily is composed of Mycobacterium tuberculosis cytochrome P450 132 (CYP132) and similar proteins. The function of CYP132 is as yet unknown. CYP132 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410713 [Multi-domain] Cd Length: 406 Bit Score: 306.04 E-value: 2.26e-94
cytochrome P450 (CYP) superfamily; Cytochrome P450 (P450, CYP) is a large superfamily of ...
40-444
5.51e-90
cytochrome P450 (CYP) superfamily; Cytochrome P450 (P450, CYP) is a large superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs with > 40% sequence identity are members of the same family. There are approximately 2250 CYP families: mammals, insects, plants, fungi, bacteria, and archaea have around 18, 208, 277, 805, 591, and 14 families, respectively. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop. Their monooxygenase activity relies on the reductive scission of molecular oxygen bound to the P450 heme iron, and the delivery of two electrons to the heme iron during the catalytic cycle. CYPs use a variety of redox partners, such as the eukaryotic diflavin enzyme NADPH-cytochrome P450 oxidoreductase and the bacterial/mitochondrial NAD(P)H-ferredoxin reductase and ferredoxin partners. Some CYPs are naturally linked to their redox partners and others have evolved to bypass requirements for redox partners, and instead react directly with hydrogen peroxide or NAD(P)H to facilitate oxidative or reductive catalysis.
Pssm-ID: 410651 [Multi-domain] Cd Length: 391 Bit Score: 294.04 E-value: 5.51e-90
NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase ...
840-1062
6.18e-90
NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via FAD and FMN. CYPOR has a C-terminal ferredoxin reducatase (FNR)- like FAD and NAD binding module, an FMN-binding domain, and an additional conecting domain (inserted within the FAD binding region) that orients the FNR and FMN binding domains. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria and participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2, which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99779 [Multi-domain] Cd Length: 267 Bit Score: 289.24 E-value: 6.18e-90
The ferredoxin-reductase (FNR) like C-terminal domain of the nitric oxide synthase (NOS) fuses ...
681-1061
2.87e-85
The ferredoxin-reductase (FNR) like C-terminal domain of the nitric oxide synthase (NOS) fuses with a heme-containing N-terminal oxidase domain. The reductase portion is similar in structure to NADPH dependent cytochrome-450 reductase (CYPOR), having an inserted connecting sub-domain within the FAD binding portion of FNR. NOS differs from CYPOR in a requirement for the cofactor tetrahydrobiopterin and unlike most CYPOR is dimeric. Nitric oxide synthase produces nitric oxide in the conversion of L-arginine to L-citruline. NOS has been implicated in a variety of processes including cytotoxicity, anti-inflamation, neurotransmission, and vascular smooth muscle relaxation.
Pssm-ID: 99799 [Multi-domain] Cd Length: 406 Bit Score: 281.53 E-value: 2.87e-85
Cytochrome P450; Cytochrome P450s are haem-thiolate proteins involved in the oxidative ...
9-428
1.37e-82
Cytochrome P450; Cytochrome P450s are haem-thiolate proteins involved in the oxidative degradation of various compounds. They are particularly well known for their role in the degradation of environmental toxins and mutagens. They can be divided into 4 classes, according to the method by which electrons from NAD(P)H are delivered to the catalytic site. Sequence conservation is relatively low within the family - there are only 3 absolutely conserved residues - but their general topography and structural fold are highly conserved. The conserved core is composed of a coil termed the 'meander', a four-helix bundle, helices J and K, and two sets of beta-sheets. These constitute the haem-binding loop (with an absolutely conserved cysteine that serves as the 5th ligand for the haem iron), the proton-transfer groove and the absolutely conserved EXXR motif in helix K. While prokaryotic P450s are soluble proteins, most eukaryotic P450s are associated with microsomal membranes. their general enzymatic function is to catalyze regiospecific and stereospecific oxidation of non-activated hydrocarbons at physiological temperatures.
Pssm-ID: 395020 [Multi-domain] Cd Length: 461 Bit Score: 276.08 E-value: 1.37e-82
Cytochrome P450 [Secondary metabolites biosynthesis, transport and catabolism, Defense ...
38-456
3.60e-81
Cytochrome P450 [Secondary metabolites biosynthesis, transport and catabolism, Defense mechanisms]; Cytochrome P450 is part of the Pathway/BioSystem: Biotin biosynthesis
Pssm-ID: 441727 [Multi-domain] Cd Length: 400 Bit Score: 270.23 E-value: 3.60e-81
cytochrome P450 family 46, subfamily A, polypeptide 1, also called cholesterol 24-hydroxylase, ...
32-448
6.19e-81
cytochrome P450 family 46, subfamily A, polypeptide 1, also called cholesterol 24-hydroxylase, and similar cytochrome P450s; CYP46A1 is also called cholesterol 24-hydroxylase (EC 1.14.14.25), CH24H, cholesterol 24-monooxygenase, or cholesterol 24S-hydroxylase. It catalyzes the conversion of cholesterol into 24S-hydroxycholesterol and, to a lesser extent, 25-hydroxycholesterol. CYP46A1 is associated with high-order brain functions; increased expression improves cognition while a reduction leads to a poor cognitive performance. It also plays a role in the pathogenesis or progression of neurodegenerative disorders. CYP46A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410706 [Multi-domain] Cd Length: 429 Bit Score: 270.54 E-value: 6.19e-81
Fusarium verticillioides cytochrome P450 monooxygenase FUM15, and similar cytochrome P450s; ...
39-430
1.01e-79
Fusarium verticillioides cytochrome P450 monooxygenase FUM15, and similar cytochrome P450s; Fusarium verticillioides cytochrome P450 monooxygenase FUM15, is also called fumonisin biosynthesis cluster protein 15. The FUM15 gene is part of the gene cluster that mediates the biosynthesis of fumonisins B1, B2, B3, and B4, which are carcinogenic mycotoxins. This FUM15-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410692 [Multi-domain] Cd Length: 437 Bit Score: 267.60 E-value: 1.01e-79
Human methionine synthase reductase (MSR) restores methionine sythase which is responsible for ...
693-1062
9.57e-77
Human methionine synthase reductase (MSR) restores methionine sythase which is responsible for the regeneration of methionine from homocysteine, as well as the coversion of methyltetrahydrofolate to tetrahydrofolate. In MSR, electrons are transferred from NADPH to FAD to FMN to cob(II)alamin. MSR resembles proteins of the cytochrome p450 family including nitric oxide synthase, the alpha subunit of sulfite reductase, but contains an extended hinge region. NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via FAD and FMN. CYPORs resemble ferredoxin reductase (FNR) but have a connecting subdomain inserted within the flavin binding region, which helps orient the FMN binding doamin with the FNR module. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99800 [Multi-domain] Cd Length: 398 Bit Score: 258.02 E-value: 9.57e-77
cytochrome P450 family 3, subfamily A and similar cytochrome P450s; This family includes ...
38-448
2.74e-74
cytochrome P450 family 3, subfamily A and similar cytochrome P450s; This family includes vertebrate CYP3A subfamily enzymes and CYP5a1, and similar proteins. CYP5A1, also called thromboxane-A synthase, converts prostaglandin H2 into thromboxane A2, a biologically active metabolite of arachidonic acid. CYP3A enzymes are drug-metabolizing enzymes embedded in the endoplasmic reticulum, where they can catalyze a wide variety of biochemical reactions including hydroxylation, N-demethylation, O-dealkylation, S-oxidation, deamination, or epoxidation of substrates. The CYP3A-like family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410678 [Multi-domain] Cd Length: 422 Bit Score: 252.12 E-value: 2.74e-74
cytochrome P450 family/clan 97; CYPs have been classified into families and subfamilies based ...
38-447
7.40e-74
cytochrome P450 family/clan 97; CYPs have been classified into families and subfamilies based on homology and phylogenetic criteria; family membership is defined as 40% amino acid sequence identity or higher. The plant CYPs have also been classified according to clans; land plants have 11 clans that form two groups: single-family clans (CYP51, CYP74, CYP97, CYP710, CYP711, CYP727, CYP746) and multi-family clans (CYP71, CYP72, CYP85, CYP86). Members of the CYP97 clan include Arabidopsis thaliana cytochrome P450s 97A3 (CYP97A3), CYP97B3, and CYP97C1. CYP97A3 is also called protein LUTEIN DEFICIENT 5 (LUT5) and CYP97C1 is also called carotene epsilon-monooxygenase or protein LUTEIN DEFICIENT 1 (LUT1). These cytochromes function as beta- and epsilon-ring carotenoid hydroxylases and are involved in the biosynthesis of xanthophylls. CYP97 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410672 [Multi-domain] Cd Length: 441 Bit Score: 251.52 E-value: 7.40e-74
cytochrome P450 family 4; Cytochrome P450 family 4 (CYP4) proteins catalyze the ...
40-453
8.78e-69
cytochrome P450 family 4; Cytochrome P450 family 4 (CYP4) proteins catalyze the omega-hydroxylation of the terminal carbon of fatty acids, including essential signaling molecules such as eicosanoids, prostaglandins and leukotrienes, and they are important for chemical defense. There are seven vertebrate family 4 subfamilies: CYP4A, CYP4B, CYP4F, CYP4T, CYP4V, CYP4X, and CYP4Z; three (CYP4X, CYP4A, CYP4Z) are specific to mammals. CYP4 enzymes metabolize fatty acids off various length, level of saturation, and branching. Specific subfamilies show preferences for the length of fatty acids; CYP4B, CYP4A and CYP4V, and CYP4F preferentially metabolize short (C7-C10), medium (C10-C16), and long to very long (C18-C26) fatty acid chains, respectively. CYP4 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410721 [Multi-domain] Cd Length: 426 Bit Score: 236.65 E-value: 8.78e-69
cytochrome P450 family 110 and similar cytochrome P450s; This group is composed of mostly ...
36-428
2.35e-64
cytochrome P450 family 110 and similar cytochrome P450s; This group is composed of mostly uncharacterized proteins, including Nostoc sp. probable cytochrome P450 110 (CYP110) and putative cytochrome P450s 139 (CYP139), 138 (CYP138), and 135B1 (CYP135B1) from Mycobacterium bovis. CYP110 genes, unique to cyanobacteria, are widely distributed in heterocyst-forming cyanobacteria including nitrogen-fixing genera Nostoc and Anabaena. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410676 [Multi-domain] Cd Length: 415 Bit Score: 224.00 E-value: 2.35e-64
cytochrome P450 family 4, subfamilies B and F, and similar cytochrome P450s; This group is ...
81-446
2.66e-64
cytochrome P450 family 4, subfamilies B and F, and similar cytochrome P450s; This group is composed of family 4 cytochrome P450s from vertebrate subfamilies A (CYP4A), B (CYP4B), F (CYP4F), T (CYP4T), X (CYP4X), and Z (CYP4Z). Also included are similar proteins from lancelets, tunicates, hemichordates, echinoderms, mollusks, annelid worms, sponges, and choanoflagellates, among others. The CYP4A, CYP4X, and CYP4Z subfamilies are specific to mammals, CYP4T is present in fish, while CYP4B and CYP4F are conserved among vertebrates. CYP4Bs specialize in omega-hydroxylation of short chain fatty acids and also participates in the metabolism of exogenous compounds that are protoxic including valproic acid (C8), 3-methylindole (C9), 4-ipomeanol, 3-methoxy-4-aminoazobenzene, and several aromatic amines. CYP4F enzymes are known for known for omega-hydroxylation of very long fatty acids (VLFA; C18-C26), leukotrienes, prostaglandins, and vitamins with long alkyl side chains. The CYP4B_4F-like group belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410752 [Multi-domain] Cd Length: 423 Bit Score: 223.97 E-value: 2.66e-64
cytochrome P450 family 6 and similar cytochrome P450s; This family is composed of cytochrome ...
84-428
1.97e-62
cytochrome P450 family 6 and similar cytochrome P450s; This family is composed of cytochrome P450s from insects and crustaceans, including the CYP6, CYP9 and CYP310 subfamilies, which are involved in the metabolism of insect hormones and xenobiotic detoxification. The CYP6-like family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410679 [Multi-domain] Cd Length: 429 Bit Score: 218.95 E-value: 1.97e-62
cytochrome P450 family 170, subfamily A, polypeptide 1-like actinobacterial cytochrome P450s; ...
30-428
9.49e-59
cytochrome P450 family 170, subfamily A, polypeptide 1-like actinobacterial cytochrome P450s; This subfamily is composed of Streptomyces coelicolor cytochrome P450 170A1 (CYP170A1), Streptomyces avermitilis pentalenene oxygenase, and similar actinobacterial cytochrome P450s. CYP170A1, also called epi-isozizaene 5-monooxygenase (EC 1.14.13.106)/(E)-beta-farnesene synthase (EC 4.2.3.47), catalyzes the two-step allylic oxidation of epi-isozizaene to albaflavenone, which is a sesquiterpenoid antibiotic. Pentalenene oxygenase (EC 1.14.15.32) catalyzes the conversion of pentalenene to pentalen-13-al by stepwise oxidation via pentalen-13-ol, a precursor of the neopentalenolactone antibiotic. The CYP170A1-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410673 [Multi-domain] Cd Length: 415 Bit Score: 207.88 E-value: 9.49e-59
Plant cytochrome P450s, clan CYP72; CYPs have been classified into families and subfamilies ...
39-447
1.38e-58
Plant cytochrome P450s, clan CYP72; CYPs have been classified into families and subfamilies based on homology and phylogenetic criteria; family membership is defined as 40% amino acid sequence identity or higher. The plant CYPs have also been classified according to clans; land plants have 11 clans that form two groups: single-family clans (CYP51, CYP74, CYP97, CYP710, CYP711, CYP727, CYP746) and multi-family clans (CYP71, CYP72, CYP85, CYP86). The CYP72 clan is associated with the metabolism of a diversity of fairly hydrophobic compounds including fatty acids and isoprenoids, with the catabolism of hormones (brassinosteroids and gibberellin, GA) and with the biosynthesis of cytokinins. This clan includes: CYP734 enzymes that are involved in brassinosteroid (BRs) catabolism and regulation of BRs homeostasis; CYP714 enzymes that are involved in the biosynthesis of gibberellins (GAs) and the mechanism to control their bioactive endogenous levels; and CYP72 family enzymes, among others. The CYP72 clan belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410675 [Multi-domain] Cd Length: 427 Bit Score: 207.96 E-value: 1.38e-58
cytochrome P450 family 52; Cytochrome P450 52 (CYP52), also called P450ALK, monooxygenases ...
39-429
5.42e-56
cytochrome P450 family 52; Cytochrome P450 52 (CYP52), also called P450ALK, monooxygenases catalyze the first hydroxylation step in the assimilation of alkanes and fatty acids by filamentous fungi. The number of CYP52 proteins depend on the fungal species: for example, Candida tropicalis has seven, Candida maltose has eight, and Yarrowia lipolytica has twelve. The CYP52 family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410686 [Multi-domain] Cd Length: 419 Bit Score: 200.09 E-value: 5.42e-56
cytochrome P450 family 67 and similar cytochrome P450s; This subfamily includes Uromyces ...
100-428
6.24e-55
cytochrome P450 family 67 and similar cytochrome P450s; This subfamily includes Uromyces viciae-fabae cytochrome P450 67 (CYP67), also called planta-induced rust protein 16, Cystobasidium minutum (Rhodotorula minuta) cytochrome P450rm, and other fungal cytochrome P450s. P450rm catalyzes the formation of isobutene and 4-hydroxylation of benzoate. The gene encoding CYP67 is a planta-induced gene that is expressed in haustoria and rust-infected leaves. The CYP67-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410684 [Multi-domain] Cd Length: 418 Bit Score: 197.06 E-value: 6.24e-55
cytochrome P450 family 56-like fungal cytochrome P450s; This group includes Saccharomyces ...
38-428
1.45e-52
cytochrome P450 family 56-like fungal cytochrome P450s; This group includes Saccharomyces cerevisiae cytochrome P450 56, also called cytochrome P450-DIT2, and similar fungal proteins. CYP56 is involved in spore wall maturation and is thought to catalyze the oxidation of tyrosine residues in the formation of LL-dityrosine-containing precursors of the spore wall. The CYP56-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410693 [Multi-domain] Cd Length: 438 Bit Score: 191.00 E-value: 1.45e-52
unknown subfamily of cytochrome P450s; This subfamily is composed of uncharacterized ...
40-428
1.62e-52
unknown subfamily of cytochrome P450s; This subfamily is composed of uncharacterized cytochrome P450s. Cytochrome P450 (P450, CYP) is a large superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop. Their monooxygenase activity relies on the reductive scission of molecular oxygen bound to the P450 heme iron, and the delivery of two electrons to the heme iron during the catalytic cycle.
Pssm-ID: 410704 [Multi-domain] Cd Length: 421 Bit Score: 190.22 E-value: 1.62e-52
cytochrome P450 families 1 and 2, and similar cytochrome P450s; This model includes cytochrome ...
40-451
1.63e-51
cytochrome P450 families 1 and 2, and similar cytochrome P450s; This model includes cytochrome P450 families 1 (CYP1) and 2 (CYP2), CYP17A1, and CYP21 in vertebrates, as well as insect and crustacean CYPs similar to CYP15A1 and CYP306A1. CYP1 and CYP2 enzymes are involved in the metabolism of endogenous and exogenous compounds such as hormones, xenobiotics, and drugs. CYP17A1 catalyzes the conversion of pregnenolone and progesterone to their 17-alpha-hydroxylated products, while CYP21 catalyzes the 21-hydroxylation of steroids such as progesterone and 17-alpha-hydroxyprogesterone (17-alpha-OH-progesterone) to form 11-deoxycorticosterone and 11-deoxycortisol, respectively. Members of this group belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410710 [Multi-domain] Cd Length: 419 Bit Score: 187.42 E-value: 1.63e-51
cytochrome P450 family 24 subfamily A, polypeptide 1 and similar cytochrome P450s; This family ...
37-446
1.27e-50
cytochrome P450 family 24 subfamily A, polypeptide 1 and similar cytochrome P450s; This family is composed of vertebrate cytochrome P450 24A1 (CYP24A1) and similar proteins including several Drosophila proteins such as CYP315A1 (also called protein shadow) and CYP314A1 (also called ecdysone 20-monooxygenase), and vertebrate CYP11 and CYP27 subfamilies. Both CYP314A1 and CYP315A1, which has ecdysteroid C2-hydroxylase activity, are involved in the metabolism of insect hormones. CYP24A1 and CYP27B1 have roles in calcium homeostasis and metabolism, and the regulation of vitamin D. CYP24A1 catabolizes calcitriol (1,25(OH)2D), the physiologically active vitamin D hormone, by catalyzing its hydroxylation, while CYP27B1 is a calcidiol 1-monooxygenase that coverts 25-hydroxyvitamin D3 to calcitriol. The CYP24A1-like family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410677 [Multi-domain] Cd Length: 426 Bit Score: 185.04 E-value: 1.27e-50
cytochrome P450 family 734; Cytochrome P450 family 734 (CYP734) belongs to the plant CYP72 ...
39-446
2.98e-50
cytochrome P450 family 734; Cytochrome P450 family 734 (CYP734) belongs to the plant CYP72 clan, which is generally associated with the metabolism of a diversity of fairly hydrophobic compounds including fatty acids and isoprenoids, with the catabolism of hormones (brassinosteroids and gibberellin, GA) and with the biosynthesis of cytokinins. CYP734As function as multisubstrate and multifunctional enzymes in brassinosteroid (BRs) catabolism and regulation of BRs homeostasis. Arabidopsis thaliana CYP734A1/BAS1 (formerly CYP72B1) inactivates bioactive brassinosteroids such as castasterone (CS) and brassinolide (BL) by C-26 hydroxylation. Rice CYP734As can catalyze C-22 hydroxylation as well as second and third oxidations to produce aldehyde and carboxylate groups at C-26. CYP734 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410732 [Multi-domain] Cd Length: 428 Bit Score: 183.81 E-value: 2.98e-50
cytochrome P450 family 3, subfamily A; The cytochrome P450 3A (CYP3A) subfamily, the most ...
84-428
1.70e-49
cytochrome P450 family 3, subfamily A; The cytochrome P450 3A (CYP3A) subfamily, the most abundant CYP subfamily in the liver, consists of drug-metabolizing enzymes. In humans, there are at least four isoforms: CYP3A4, 3A5, 3A7, and 3A3. CYP3A enzymes are embedded in the endoplasmic reticulum, where they can catalyze a wide variety of biochemical reactions including hydroxylation, N-demethylation, O-dealkylation, S-oxidation, deamination, or epoxidation of substrates. They oxidize a variety of structurally unrelated compounds including steroids, fatty acids, and xenobiotics. The CYP3A subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410743 [Multi-domain] Cd Length: 426 Bit Score: 181.84 E-value: 1.70e-49
cytochrome P450 family 709; Cytochrome P450 family 709 (CYP709) belongs to the plant CYP72 ...
32-446
5.05e-49
cytochrome P450 family 709; Cytochrome P450 family 709 (CYP709) belongs to the plant CYP72 clan, which is generally associated with the metabolism of a diversity of fairly hydrophobic compounds including fatty acids and isoprenoids, with the catabolism of hormones (brassinosteroids and gibberellin, GA) and with the biosynthesis of cytokinins. Arabidopsis thaliana CYP709B3 is involved in abscisic acid (ABA) and salt stress response. CYP709 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410734 [Multi-domain] Cd Length: 431 Bit Score: 180.34 E-value: 5.05e-49
cytochrome P450 family 313 and similar cytochrome P450s; This subfamily is composed of insect ...
86-446
7.72e-47
cytochrome P450 family 313 and similar cytochrome P450s; This subfamily is composed of insect cytochrome P450s from families 313 (CYP313) and 318 (CYP318), and similar proteins. These proteins may be involved in the metabolism of insect hormones and in the breakdown of synthetic insecticides. Their specific function is yet unknown. They belong to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410680 [Multi-domain] Cd Length: 427 Bit Score: 173.94 E-value: 7.72e-47
cytochrome P450 family 4, subfamily V, and similar cytochrome P450s; This group is composed of ...
40-426
8.12e-47
cytochrome P450 family 4, subfamily V, and similar cytochrome P450s; This group is composed of vertebrate cytochrome P450 family 4, subfamily V (CYP4V) enzymes and similar proteins, including invertebrate subfamily C (CYP4C). Insect CYP4C enzymes may be involved in the metabolism of insect hormones and in the breakdown of synthetic insecticides. CYP4V2, the most characterized member of the CYP4V subfamily, is a selective omega-hydroxylase of saturated, medium-chain fatty acids, such as laurate, myristate and palmitate, with high catalytic efficiency toward myristate. Polymorphisms in the CYP4V2 gene cause Bietti's crystalline corneoretinal dystrophy (BCD), a recessive degenerative retinopathy that is characterized clinically by a progressive decline in central vision, night blindness, and constriction of the visual field. The CYP4V-like group belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410753 [Multi-domain] Cd Length: 429 Bit Score: 173.99 E-value: 8.12e-47
cyanobacterial cytochrome P450 family 120, subfamily A, polypeptide 1 (CYP120A1), vertebrate ...
29-448
1.21e-45
cyanobacterial cytochrome P450 family 120, subfamily A, polypeptide 1 (CYP120A1), vertebrate cytochrome P450 family 26 enzymes, and similar cytochrome P450s; This family includes cyanobacterial CYP120A1 and vertebrate cytochrome P450s 26A1 (CYP26A1), 26B1 (CYP26B1), and 26C1 (CYP26C1). These are retinoic acid-metabolizing cytochromes that play key roles in retinoic acid (RA) metabolism. Human and zebrafish CYP26a1, as well as Synechocystis CYP120A1 are characterized as RA hydroxylases. RA is a critical signaling molecule that regulates gene transcription and the cell cycle. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410670 [Multi-domain] Cd Length: 420 Bit Score: 170.16 E-value: 1.21e-45
cytochrome P450 family 51 and similar cytochrome P450s; This family is composed of cytochrome ...
37-428
2.18e-43
cytochrome P450 family 51 and similar cytochrome P450s; This family is composed of cytochrome P450 51 (CYP51 or sterol 14alpha-demethylase) and related cytochrome P450s. CYP51 is the only cytochrome P450 enzyme with a conserved function across animals, fungi, and plants, in the synthesis of essential sterols. In mammals, it is expressed in many different tissues, with highest expression in testis, ovary, adrenal gland, prostate, liver, kidney, and lung. In fungi, CYP51 is a significant drug target for treatment of human protozoan infections. In plants, it functions within a specialized defense-related metabolic pathway. CYP51 is also found in several bacterial species. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410668 [Multi-domain] Cd Length: 416 Bit Score: 163.54 E-value: 2.18e-43
cytochrome P450 monooxygenase CYP5011A1 and similar cytochrome P450s; This subfamily is ...
42-448
6.81e-43
cytochrome P450 monooxygenase CYP5011A1 and similar cytochrome P450s; This subfamily is composed of CYPs from unicellular ciliates similar to Tetrahymena thermophila CYP5011A1, whose function is still unknown. It belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410714 [Multi-domain] Cd Length: 427 Bit Score: 162.42 E-value: 6.81e-43
cytochrome P450 family 86, subfamily A; This subfamily includes several Arabidopsis thaliana ...
68-428
6.05e-42
cytochrome P450 family 86, subfamily A; This subfamily includes several Arabidopsis thaliana cytochrome P450s (CYP86A1, CYP86A2, CYP86A4, among others), Petunia x hybrida CYP86A22, and Vicia sativa CYP94A1 and CYP94A2. They are P450-dependent fatty acid omega-hydroxylases that catalyze the omega-hydroxylation of various fatty acids. CYP86A2 acts on saturated and unsaturated fatty acids with chain lengths from C12 to C18; CYP86A22 prefers substrates with chain lengths of C16 and C18; and CYP94A1 acts on various fatty acids from 10 to 18 carbons. They play roles in the biosynthesis of extracellular lipids, cutin synthesis, and plant defense. The CYP86A subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410687 [Multi-domain] Cd Length: 432 Bit Score: 159.68 E-value: 6.05e-42
cytochrome P450 family 714; Cytochrome P450 family 714 (CYP714) belongs to the plant CYP72 ...
32-447
1.30e-41
cytochrome P450 family 714; Cytochrome P450 family 714 (CYP714) belongs to the plant CYP72 clan, which is generally associated with the metabolism of a diversity of fairly hydrophobic compounds including fatty acids and isoprenoids, with the catabolism of hormones (brassinosteroids and gibberellin, GA) and with the biosynthesis of cytokinins. CYP714 enzymes are involved in the biosynthesis of gibberellins (GAs) and the mechanism to control their bioactive endogenous levels. They contribute to the production of diverse GA compounds through various oxidations of C and D rings in both monocots and eudicots. CYP714B1 and CYP714B2 encode the enzyme GA 13-oxidase, which is required for GA1 biosynthesis, while CYP714D1 encodes GA 16a,17-epoxidase, which inactivates the non-13-hydroxy GAs in rice. Arabidopsis CYP714A1 is an inactivation enzyme that catalyzes the conversion of GA12 to 16-carboxylated GA12 (16-carboxy-16beta,17-dihydro GA12). CYP714 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410733 [Multi-domain] Cd Length: 426 Bit Score: 158.73 E-value: 1.30e-41
cytochrome P450 family 59 and similar cytochrome P450s; This family is composed of Aspergillus ...
48-427
2.26e-41
cytochrome P450 family 59 and similar cytochrome P450s; This family is composed of Aspergillus nidulans cytochrome P450 59 (CYP59), also called sterigmatocystin biosynthesis P450 monooxygenase stcS, and similar fungal proteins. CYP59 is required for the conversion of versicolorin A to sterigmatocystin. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410674 [Multi-domain] Cd Length: 403 Bit Score: 157.42 E-value: 2.26e-41
cytochrome P450 family 4, subfamily B and similar cytochrome P450s, including subfamilies A, T, ...
86-429
1.06e-40
cytochrome P450 family 4, subfamily B and similar cytochrome P450s, including subfamilies A, T, X, and Z; This group is composed of family 4 cytochrome P450s from subfamilies A (CYP4A), B (CYP4B), T (CYP4T), X (CYP4X), and Z (CYP4Z). The CYP4A, CYP4X, and CYP4Z subfamilies are specific to mammals, CYP4T is present in fish, while CYP4B is conserved among vertebrates. CYP4As are known for catalyzing arachidonic acid to 20-HETE (20-hydroxy-5Z,8Z,11Z,14Z-eicosatetraenoic acid), and some can also metabolize lauric and palmitic acid. CYP4Bs specialize in omega-hydroxylation of short chain fatty acids and also participates in the metabolism of exogenous compounds that are protoxic including valproic acid (C8), 3-methylindole (C9), 4-ipomeanol, 3-methoxy-4-aminoazobenzene, and several aromatic amines. CYP4X1 is expressed at high levels in the mammalian brain and may play a role in regulating fat metabolism. CYP4Z1 is a fatty acid hydroxylase that is unique among human CYPs in that it is predominantly expressed in the mammary gland. Monophyly was not found with the CYP4T and CYP4B subfamilies, and further consideration should be given to their nomenclature. The CYP4B-like group belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410771 [Multi-domain] Cd Length: 436 Bit Score: 156.28 E-value: 1.06e-40
cytochrome P450 family 60, subfamily B and similar cytochrome P450s; This family is composed ...
105-428
6.64e-40
cytochrome P450 family 60, subfamily B and similar cytochrome P450s; This family is composed of fungal cytochrome P450s including: Aspergillus nidulans cytochrome P450 60B (CYP60B), also called versicolorin B desaturase, which catalyzes the conversion of versicolorin B to versicolorin A during sterigmatocystin biosynthesis; Fusarium sporotrichioides cytochrome P450 65A1 (CYP65A1), also called isotrichodermin C-15 hydroxylase, which catalyzes the hydroxylation at C-15 of isotricodermin in trichothecene biosynthesis; and Penicillium aethiopicum P450 monooxygenase vrtK, also called viridicatumtoxin synthesis protein K, which catalyzes the spirocyclization of the geranyl moiety of previridicatumtoxin to produce viridicatumtoxin, a tetracycline-like fungal meroterpenoid. The CYP60B-like family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410681 [Multi-domain] Cd Length: 419 Bit Score: 153.51 E-value: 6.64e-40
FAD binding domain; This domain is found in sulfite reductase, NADPH cytochrome P450 reductase, ...
679-883
7.18e-40
FAD binding domain; This domain is found in sulfite reductase, NADPH cytochrome P450 reductase, Nitric oxide synthase and methionine synthase reductase.
Pssm-ID: 395540 [Multi-domain] Cd Length: 219 Bit Score: 147.10 E-value: 7.18e-40
plant cytochrome P450s similar to cytochrome P450 family 90, subfamily A, polypeptide 1, ...
39-426
1.76e-39
plant cytochrome P450s similar to cytochrome P450 family 90, subfamily A, polypeptide 1, cytochrome P450 family 90, subfamily B, polypeptide 1, and cytochrome P450 family 90, subfamily D, polypeptide 2; This family is composed of plant cytochrome P450s including: Arabidopsis thaliana cytochrome P450s 85A1 (CYP85A1 or brassinosteroid-6-oxidase 1), 90A1 (CYP90A1), 88A3 (CYP88A3 or ent-kaurenoic acid oxidase 1), 90B1 (CYP90B1 or Dwarf4 or steroid 22-alpha-hydroxylase), and 90C1 (CYP90C1 or 3-epi-6-deoxocathasterone 23-monooxygenase); Oryza sativa cytochrome P450s 90D2 (CYP90D2 or C6-oxidase), 87A3 (CYP87A3), and 724B1 (CYP724B1 or dwarf protein 11); and Taxus cuspidata cytochrome P450 725A2 (CYP725A2 or taxane 13-alpha-hydroxylase). These enzymes are monooxygenases that catalyze oxidation reactions involved in steroid or hormone biosynthesis. CYP85A1, CYP90D2, and CYP90C1 are involved in brassinosteroids biosynthesis, while CYP88A3 catalyzes three successive oxidations of ent-kaurenoic acid, which is a key step in the synthesis of gibberellins. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410669 [Multi-domain] Cd Length: 408 Bit Score: 151.95 E-value: 1.76e-39
putative cytochrome P450 family 136 and similar cytochrome P450s; This group is composed of ...
37-448
1.99e-39
putative cytochrome P450 family 136 and similar cytochrome P450s; This group is composed of Mycobacterium tuberculosis putative cytochrome P450 136 (CYP136) and similar proteins. It belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410671 [Multi-domain] Cd Length: 407 Bit Score: 151.70 E-value: 1.99e-39
cytochrome P450 family 72; Cytochrome P450 family 72 (CYP72) belongs to the plant CYP72 clan, ...
53-426
7.10e-39
cytochrome P450 family 72; Cytochrome P450 family 72 (CYP72) belongs to the plant CYP72 clan, which is generally associated with the metabolism of a diversity of fairly hydrophobic compounds including fatty acids and isoprenoids, with the catabolism of hormones (brassinosteroids and gibberellin, GA) and with the biosynthesis of cytokinins. Characterized members, among others, include: Catharanthus roseus cytochrome P450 72A1 (CYP72A1), also called secologanin synthase (EC 1.3.3.9), that catalyzes the conversion of loganin into secologanin, the precursor of monoterpenoid indole alkaloids and ipecac alkaloids; Medicago truncatula CYP72A67 that catalyzes a key oxidative step in hemolytic sapogenin biosynthesis; and Arabidopsis thaliana CYP72C1, an atypical CYP that acts on brassinolide precursors and functions as a brassinosteroid-inactivating enzyme. This family also includes Panax ginseng CYP716A47 that catalyzes the formation of protopanaxadiol from dammarenediol-II during ginsenoside biosynthesis. CYP72 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410735 [Multi-domain] Cd Length: 431 Bit Score: 150.51 E-value: 7.10e-39
cytochrome P450 family 5, subfamily A, polypeptide 1, also called thromboxane-A synthase; ...
99-448
9.02e-37
cytochrome P450 family 5, subfamily A, polypeptide 1, also called thromboxane-A synthase; Cytochrome P450 5A1 (CYP5A1), also called thromboxane-A synthase (EC 5.3.99.5) or thromboxane synthetase, converts prostaglandin H2 into thromboxane A2, a biologically active metabolite of arachidonic acid that has been implicated in stroke, asthma, and various cardiovascular diseases, due to its acute and chronic effects in promoting platelet aggregation, vasoconstriction, bronchoconstriction, and proliferation. CYP5A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410742 [Multi-domain] Cd Length: 457 Bit Score: 144.98 E-value: 9.02e-37
Plant cytochrome P450s, clan CYP71; The number of cytochrome P450s (P450s, CYPs) in plants is ...
97-427
1.08e-36
Plant cytochrome P450s, clan CYP71; The number of cytochrome P450s (P450s, CYPs) in plants is considerably larger than in other taxa. In individual plant genomes, CYPs form the third largest family of plant genes; the two largest gene families code for F-box proteins and receptor-like kinases. CYPs have been classified into families and subfamilies based on homology and phylogenetic criteria; family membership is defined as 40% amino acid sequence identity or higher. However, there is a phenomenon called family creep, where a sequence (below 40% identity) is absorbed into a large family; this is seen in the plant CYP71 and CYP89 families. The plant CYPs have also been classified according to clans; land plants have 11 clans that form two groups: single-family clans (CYP51, CYP74, CYP97, CYP710, CYP711, CYP727, CYP746) and multi-family clans (CYP71, CYP72, CYP85, CYP86). The CYP71 clan has expanded dramatically and represents 50% of all plant CYPs; it includes several families including CYP71, CYP73, CYP76, CYP81, CYP82, CYP89, and CYP93, among others. It belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410711 [Multi-domain] Cd Length: 429 Bit Score: 144.23 E-value: 1.08e-36
cytochrome P450 family 4, subfamily V; Cytochrome P450 family 4, subfamily V, polypeptide 2 ...
86-426
8.26e-36
cytochrome P450 family 4, subfamily V; Cytochrome P450 family 4, subfamily V, polypeptide 2 (CYP4V2) is the most characterized member of the CYP4V subfamily. It is a selective omega-hydroxylase of saturated, medium-chain fatty acids, such as laurate, myristate and palmitate, with high catalytic efficiency toward myristate. Polymorphisms in the CYP4V2 gene cause Bietti's crystalline corneoretinal dystrophy (BCD), a recessive degenerative retinopathy that is characterized clinically by a progressive decline in central vision, night blindness, and constriction of the visual field. The CYP4V subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410773 [Multi-domain] Cd Length: 440 Bit Score: 141.82 E-value: 8.26e-36
cytochrome P450 family 4, subfamily F; Cytochrome P450 family 4, subfamily F (CYP4F) enzymes ...
86-430
3.22e-35
cytochrome P450 family 4, subfamily F; Cytochrome P450 family 4, subfamily F (CYP4F) enzymes are known for known for omega-hydroxylation of very long fatty acids (VLFA; C18-C26), leukotrienes, prostaglandins, and vitamins with long alkyl side chains. The CYP4F subfamily show diverse specificities among its members: CYP4F2 and CYP4F3 metabolize pro- and anti-inflammatory leukotrienes; CYP4F8 and CYP4F12 metabolize prostaglandins, endoperoxides and arachidonic acid; CYP4F11 and CYP4F12 metabolize VLFA and are unique in the CYP4F subfamily since they also hydroxylate xenobiotics such as benzphetamine, ethylmorphine, erythromycin, and ebastine. CYP4F belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410772 [Multi-domain] Cd Length: 442 Bit Score: 140.21 E-value: 3.22e-35
cytochrome P450 family 64-like fungal cytochrome P450s; This group includes Aspergillus flavus ...
39-427
3.75e-35
cytochrome P450 family 64-like fungal cytochrome P450s; This group includes Aspergillus flavus cytochrome P450 64 (CYP64), also called O-methylsterigmatocystin (OMST) oxidoreductase or aflatoxin B synthase or aflatoxin biosynthesis protein Q, and similar fungal cytochrome P450s. CYP64 converts OMST to aflatoxin B1 and converts dihydro-O-methylsterigmatocystin (DHOMST) to aflatoxin B2 in the aflatoxin biosynthesis pathway. The CYP64-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410688 [Multi-domain] Cd Length: 425 Bit Score: 139.63 E-value: 3.75e-35
Ferredoxin reductase (FNR), an FAD and NAD(P) binding protein, was intially identified as a ...
838-1033
2.13e-34
Ferredoxin reductase (FNR), an FAD and NAD(P) binding protein, was intially identified as a chloroplast reductase activity, catalyzing the electron transfer from reduced iron-sulfur protein ferredoxin to NADP+ as the final step in the electron transport mechanism of photosystem I. FNR transfers electrons from reduced ferredoxin to FAD (forming FADH2 via a semiquinone intermediate) and then transfers a hydride ion to convert NADP+ to NADPH. FNR has since been shown to utilize a variety of electron acceptors and donors and has a variety of physiological functions including nitrogen assimilation, dinitrogen fixation, steroid hydroxylation, fatty acid metabolism, oxygenase activity, and methane assimilation in many organisms. FNR has an NAD(P)-binding sub-domain of the alpha/beta class and a discrete (usually N-terminal) flavin sub-domain which vary in orientation with respect to the NAD(P) binding domain. The N-terminal moeity may contain a flavin prosthetic group (as in flavoenzymes) or use flavin as a substrate. Because flavins such as FAD can exist in oxidized, semiquinone (one- electron reduced), or fully reduced hydroquinone forms, FNR can interact with one and 2 electron carriers. FNR has a strong preference for NADP(H) vs NAD(H).
Pssm-ID: 99778 [Multi-domain] Cd Length: 223 Bit Score: 131.42 E-value: 2.13e-34
cytochrome P450 families 77 and 89, and similar cytochrome P450s; This group includes ...
38-427
1.07e-33
cytochrome P450 families 77 and 89, and similar cytochrome P450s; This group includes cytochrome P450 families 73 (CYP77) and 89 (CYP89), which are sister families that share a common ancestor. CYP89, present only in angiosperms, is younger than CYP77, which is already found in lycopods; thus, CYP89 may have evolved from CYP77 after duplication and divergence. Also included in this group is ent-kaurene oxidase, called CYP701A3 in Arabidopsis thaliana and CYP701B1 in Physcomitrella patens, that catalyzes the oxidation of ent-kaurene to form ent-kaurenoic acid. CYP701A3 is sensitive to inhibitor uniconazole-P while CYP701B1 is not. This CYP77/89 group belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410698 [Multi-domain] Cd Length: 433 Bit Score: 135.45 E-value: 1.07e-33
Cytochrome p450- like alpha subunits of E. coli sulfite reductase (SiR) multimerize with beta ...
842-1062
1.79e-33
Cytochrome p450- like alpha subunits of E. coli sulfite reductase (SiR) multimerize with beta subunits to catalyze the NADPH dependent reduction of sulfite to sulfide. Beta subunits have an Fe4S4 cluster and a siroheme, while the alpha subunits (cysJ gene) are of the cytochrome p450 (CyPor) family having FAD and FMN as prosthetic groups and utilizing NADPH. Cypor (including cyt -450 reductase, nitric oxide synthase, and methionine synthase reductase) are ferredoxin reductase (FNR)-like proteins with an additional N-terminal FMN domain and a connecting sub-domain inserted within the flavin binding portion of the FNR-like domain. The connecting domain orients the N-terminal FMN domain with the C-terminal FNR domain. NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via FAD and FMN. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99798 [Multi-domain] Cd Length: 289 Bit Score: 130.91 E-value: 1.79e-33
cytochrome P450 family 15, subfamily A, polypeptide 1, and similar cytochrome P450s; This ...
40-451
3.28e-33
cytochrome P450 family 15, subfamily A, polypeptide 1, and similar cytochrome P450s; This subfamily is composed of insect and crustacean cytochrome P450s including Diploptera punctata cytochrome P450 15A1 (CYP15A1 or CYP15A1), Panulirus argus CYP2L1, and CYP303A1, CYP304A1, and CYP305A1 from Drosophila melanogaster. CYP15A1, also called methyl farnesoate epoxidase, catalyzes the conversion of methyl farnesoate to juvenile hormone III acid during juvenile hormone biosynthesis. CYP303A1, CYP304A1, and CYP305A1 may be involved in the metabolism of insect hormones and in the breakdown of synthetic insecticides. The CYP15A1-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410744 [Multi-domain] Cd Length: 423 Bit Score: 133.88 E-value: 3.28e-33
cytochrome P450 family 82; Cytochrome P450 family 82 (CYP82 or Cyp82) genes specifically ...
40-456
4.12e-33
cytochrome P450 family 82; Cytochrome P450 family 82 (CYP82 or Cyp82) genes specifically reside in dicots and are usually induced by distinct environmental stresses. Characterized members include: Glycine max CYP82A3 that is induced by infection, salinity and drought stresses, and is involved in the jasmonic acid and ethylene signaling pathway, enhancing plant resistance; Arabidopsis thaliana CYP82G1 that catalyzes the breakdown of the C(20)-precursor (E,E)-geranyllinalool to the insect-induced C(16)-homoterpene (E,E)-4,8,12-trimethyltrideca-1,3,7,11-tetraene (TMTT); and Papaver somniferum CYP82N4, also called methyltetrahydroprotoberberine 14-monooxygenase, and CYP82Y1, also called N-methylcanadine 1-hydroxylase. CYP82N4 catalyzes the conversion of N-methylated protoberberine alkaloids N-methylstylopine and N-methylcanadine into protopine and allocryptopine, respectively, in the biosynthesis of isoquinoline alkaloid sanguinarine. CYP82Y1 catalyzes the 1-hydroxylation of N-methylcanadine to 1-hydroxy-N-methylcanadine, the first committed step in the formation of noscapine. CYP82 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410747 [Multi-domain] Cd Length: 447 Bit Score: 133.90 E-value: 4.12e-33
cytochrome P450 family 58-like fungal cytochrome P450s; This group includes Fusarium ...
105-428
4.58e-33
cytochrome P450 family 58-like fungal cytochrome P450s; This group includes Fusarium sporotrichioides cytochrome P450 58 (CYP58, also known as Tri4 and trichodiene oxygenase), and similar fungal proteins. CYP58 catalyzes the oxygenation of trichodiene during the biosynthesis of trichothecenes, which are sesquiterpenoid toxins that act by inhibiting protein biosynthesis. The CYP58-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410685 [Multi-domain] Cd Length: 425 Bit Score: 133.15 E-value: 4.58e-33
cytochrome P450 family 71 and similar cytochrome P450s; The group includes plant cytochrome ...
142-426
6.56e-33
cytochrome P450 family 71 and similar cytochrome P450s; The group includes plant cytochrome P450 family 71 (CYP71) proteins, as well as some CYPs designated as belonging to a different family including CYP99A1, CYP83B1, and CYP84A1, among others. Characterized CYP71 enzymes include: parsnip (Pastinaca sativa) CYP71AJ4, also called angelicin synthase, that converts (+)-columbianetin to angelicin, an angular furanocumarin; periwinkle (Catharanthus roseus) CYP71D351, also called tabersonine 16-hydroxylase 2, that is involved in the foliar biosynthesis of vindoline; sorghum CYP71E1, also called 4-hydroxyphenylacetaldehyde oxime monooxygenase, that catalyzes the conversion of p-hydroxyphenylacetaldoxime to p-hydroxymandelonitrile; as well as maize CYP71C1, CYP71C2, and CYP71C4, which are monooxygenases catalyzing the oxidation of 3-hydroxyindolin-2-one, indolin-2-one, and indole, respectively. CYPs within a single CYP71 subfamily, such as the C subfamily, usually metabolize similar/related compounds. The CYP71-like family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410695 [Multi-domain] Cd Length: 428 Bit Score: 132.97 E-value: 6.56e-33
cytochrome P450 family 76 and similar cytochrome P450s; Characterized members of the plant ...
36-427
9.46e-33
cytochrome P450 family 76 and similar cytochrome P450s; Characterized members of the plant cytochrome P450 family 76 (CYP76 or Cyp76) include: Catharanthus roseus CYP76B6, a multifunctional enzyme catalyzing two sequential oxidation steps leading to the formation of 8-oxogeraniol from geraniol; the Brassicaceae-specific CYP76C subfamily of enzymes that are involved in the metabolism of monoterpenols and phenylurea herbicides; and two P450s from Lamiaceae, CYP76AH and CYP76AK, that are involved in the oxidation of abietane diterpenes. CYP76AH produces ferruginol and 11-hydroxyferruginol, while CYP76AK catalyzes oxidations at the C20 position. Also included in this group is Berberis stolonifera Cyp80, also called berbamunine synthase or (S)-N-methylcoclaurine oxidase [C-O phenol-coupling], that catalyzes the phenol oxidation of N-methylcoclaurine to form the bisbenzylisoquinoline alkaloid berbamunine. The CYP76-like family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410696 [Multi-domain] Cd Length: 435 Bit Score: 132.66 E-value: 9.46e-33
cytochrome P450 family 57, subfamily A, polypeptide 1 and similar cytochrome P450s; This ...
87-414
1.30e-32
cytochrome P450 family 57, subfamily A, polypeptide 1 and similar cytochrome P450s; This family is composed of fungal cytochrome P450s including: Nectria haematococca cytochrome P450 57A1 (CYP57A1), also called pisatin demethylase, which detoxifies the phytoalexin pisatin; Penicillium aethiopicum P450 monooxygenase gsfF, also called griseofulvin synthesis protein F, which catalyzes the coupling of orcinol and phloroglucinol rings in griseophenone B to form desmethyl-dehydrogriseofulvin A during the biosynthesis of griseofulvin, a spirocyclic fungal natural product used to treat dermatophyte infections; and Penicillium aethiopicum P450 monooxygenase vrtE, also called viridicatumtoxin synthesis protein E, which catalyzes hydroxylation at C5 of the polyketide backbone during the biosynthesis of viridicatumtoxin, a tetracycline-like fungal meroterpenoid. The CYP57A1-like family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410683 [Multi-domain] Cd Length: 425 Bit Score: 131.94 E-value: 1.30e-32
cytochrome P450 family 17, subfamily A, polypeptide 1, and similar cytochrome P450s; This ...
39-451
2.66e-32
cytochrome P450 family 17, subfamily A, polypeptide 1, and similar cytochrome P450s; This subfamily contains cytochrome P450 17A1 (CYP17A1 or Cyp17a1), cytochrome P450 21 (CYP21 or Cyp21) and similar proteins. CYP17A1, also called cytochrome P450c17, steroid 17-alpha-hydroxylase (EC 1.14.14.19)/17,20 lyase (EC 1.14.14.32), or 17-alpha-hydroxyprogesterone aldolase, catalyzes the conversion of pregnenolone and progesterone to their 17-alpha-hydroxylated products and subsequently to dehydroepiandrosterone (DHEA) and androstenedione; it catalyzes both the 17-alpha-hydroxylation and the 17,20-lyase reaction. This subfamily also contains CYP21, also called steroid 21-hydroxylase (EC 1.14.14.16) or cytochrome P-450c21 or CYP21A2, catalyzes the 21-hydroxylation of steroids and is required for the adrenal synthesis of mineralocorticoids and glucocorticoids. The CYP17A1-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410653 [Multi-domain] Cd Length: 428 Bit Score: 131.18 E-value: 2.66e-32
These ferredoxin reductases are related to the NADPH cytochrome p450 reductases (CYPOR), but ...
841-1057
6.34e-32
These ferredoxin reductases are related to the NADPH cytochrome p450 reductases (CYPOR), but lack the FAD-binding region connecting sub-domain. Ferredoxin-NADP+ reductase (FNR) is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins, such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap between the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2, which then transfers two electrons and a proton to NADP+ to form NADPH. CYPOR serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases, sulfite reducatase, and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via FAD and FMN. CYPOR has a C-terminal FNR-like FAD and NAD binding module, an FMN-binding domain, and an additional connecting domain (inserted within the FAD binding region) that orients the FNR and FMN -binding domains. The C-terminal domain contains most of the NADP(H) binding residues, and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule, which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99804 [Multi-domain] Cd Length: 286 Bit Score: 126.28 E-value: 6.34e-32
unknown subfamily of fungal cytochrome P450s; This subfamily is composed of uncharacterized ...
53-427
1.74e-31
unknown subfamily of fungal cytochrome P450s; This subfamily is composed of uncharacterized fungal cytochrome P450s. Cytochrome P450 (P450, CYP) is a large superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop. Their monooxygenase activity relies on the reductive scission of molecular oxygen bound to the P450 heme iron, and the delivery of two electrons to the heme iron during the catalytic cycle.
Pssm-ID: 410682 [Multi-domain] Cd Length: 422 Bit Score: 128.57 E-value: 1.74e-31
cytochrome P450 21, also called steroid 21-hydroxylase; Cytochrome P450 21 (CYP21 or Cyp21), ...
39-429
4.98e-30
cytochrome P450 21, also called steroid 21-hydroxylase; Cytochrome P450 21 (CYP21 or Cyp21), also called steroid 21-hydroxylase (EC 1.14.14.16) or cytochrome P-450c21 or CYP21A2 (in humans), catalyzes the 21-hydroxylation of steroids such as progesterone and 17-alpha-hydroxyprogesterone (17-alpha-OH-progesterone) to form 11-deoxycorticosterone and 11-deoxycortisol, respectively. It is required for the adrenal synthesis of mineralocorticoids and glucocorticoids. Deficiency of this CYP is involved in ~95% of cases of human congenital adrenal hyperplasia, a disorder of adrenal steroidogenesis. There are two CYP21 genes in the human genome, CYP21A1 (a pseudogene) and CYP21A2 (the functional gene). Deficiencies in steroid 21-hydroxylase activity lead to a type of congenital adrenal hyperplasia, which has three clinical forms: a severe form with concurrent defects in both cortisol and aldosterone biosynthesis; a form with adequate aldosterone biosynthesis; and a mild, non-classic form that can be asymptomatic or associated with signs of postpubertal androgen excess without cortisol deficiency. CYP21A2 is also the major autoantigen in autoimmune Addison disease. Cyp21 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410767 [Multi-domain] Cd Length: 424 Bit Score: 124.45 E-value: 4.98e-30
Cytochrome p450- like alpha subunits of E. coli sulfite reductase (SiR) multimerize with beta ...
834-1062
3.03e-29
Cytochrome p450- like alpha subunits of E. coli sulfite reductase (SiR) multimerize with beta subunits to catalyze the NADPH dependent reduction of sulfite to sulfide. Beta subunits have an Fe4S4 cluster and a siroheme, while the alpha subunits (cysJ gene) are of the cytochrome p450 (CyPor) family having FAD and FMN as prosthetic groups and utilizing NADPH. Cypor (including cyt -450 reductase, nitric oxide synthase, and methionine synthase reductase) are ferredoxin reductase (FNR)-like proteins with an additional N-terminal FMN domain and a connecting sub-domain inserted within the flavin binding portion of the FNR-like domain. The connecting domain orients the N-terminal FMN domain with the C-terminal FNR domain. NADPH cytochrome p450 reductase (CYPOR) serves as an electron donor in several oxygenase systems and is a component of nitric oxide synthases and methionine synthase reductases. CYPOR transfers two electrons from NADPH to the heme of cytochrome p450 via FAD and FMN. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues, and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule, which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99797 Cd Length: 245 Bit Score: 117.38 E-value: 3.03e-29
cytochrome P450 family 1; The cytochrome P450 family 1 (CYP1 or Cyp1) is composed of three ...
39-451
4.41e-29
cytochrome P450 family 1; The cytochrome P450 family 1 (CYP1 or Cyp1) is composed of three functional human members: CYP1A1, CYP1A2 and CYP1B1, which are regulated by the aryl hydrocarbon receptor (AhR), ligand-activated transcriptional factor that dimerizes with AhR nuclear translocator (ARNT). CYP1 enzymes are involved in the metabolism of endogenous hormones, xenobiotics, and drugs. Included in the CYP1 family is CYP1D1 (cytochrome P450 family 1, subfamily D, polypeptide 1), which is not expressed in humans as its gene is pseudogenized due to five nonsense mutations in the putative coding region, but is functional in in other organisms including cynomolgus monkey. Zebrafish CYP1D1 expression is not regulated by AhR. The CYP1 family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410654 [Multi-domain] Cd Length: 430 Bit Score: 121.64 E-value: 4.41e-29
cytochrome P450 family 17, subfamily A, polypeptide 1; Cytochrome P450 17A1 (CYP17A1 or ...
39-455
1.04e-28
cytochrome P450 family 17, subfamily A, polypeptide 1; Cytochrome P450 17A1 (CYP17A1 or Cyp17a1), also called cytochrome P450c17, steroid 17-alpha-hydroxylase (EC 1.14.14.19)/17,20 lyase (EC 1.14.14.32), or 17-alpha-hydroxyprogesterone aldolase, catalyzes the conversion of pregnenolone and progesterone to their 17-alpha-hydroxylated products and subsequently to dehydroepiandrosterone (DHEA) and androstenedione. It is a dual enzyme that catalyzes both the 17-alpha-hydroxylation and the 17,20-lyase reactions. Severe mutations on the enzyme cause combined 17-hydroxylase/17,20-lyase deficiency (17OHD); patients with 17OHD synthesize 11-deoxycorticosterone (DOC) which causes hypertension and hypokalemia. Loss of 17,20-lyase activity precludes sex steroid synthesis and leads to sexual infantilism. Included in this group is a second 17A P450 from teleost fish, CYP17A2, that is more efficient in pregnenolone 17-alpha-hydroxylation than CYP17A1, but does not catalyze the lyase reaction. CYP17A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410766 [Multi-domain] Cd Length: 432 Bit Score: 120.50 E-value: 1.04e-28
cytochrome P450s similar to cytochrome P450 family 7, subfamily A, polypeptide 1, cytochrome ...
32-428
1.27e-28
cytochrome P450s similar to cytochrome P450 family 7, subfamily A, polypeptide 1, cytochrome P450 family 7, subfamily B, polypeptide 1, cytochrome P450 family 8, subfamily A, polypeptide 1; This family is composed of cytochrome P450s (CYPs) with similarity to the human P450s CYP7A1, CYP7B1, CYP8B1, CYP39A1 and prostacyclin synthase (CYP8A1). CYP7A1, CYP7B1, CYP8B1, and CYP39A1 are involved in the catabolism of cholesterol to bile acids (BAs) in two major pathways. CYP7A1 (cholesterol 7alpha-hydroxylase) and CYP8B1 (sterol 12-alpha-hydroxylase) function in the classic (or neutral) pathway, which leads to two bile acids: cholic acid (CA) and chenodeoxycholic acid (CDCA). CYP7B1 and CYP39A1 are 7-alpha-hydroxylases involved in the alternative (or acidic) pathway, which leads mainly to the formation of CDCA. Prostacyclin synthase (CYP8A1) catalyzes the isomerization of prostaglandin H2 to prostacyclin (or prostaglandin I2), a potent mediator of vasodilation and anti-platelet aggregation. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410666 [Multi-domain] Cd Length: 432 Bit Score: 120.16 E-value: 1.27e-28
cytochrome P450 family 81; The only characterized member of the cytochrome P450 family 81 ...
217-427
1.49e-28
cytochrome P450 family 81; The only characterized member of the cytochrome P450 family 81 (CYP81 or Cyp81) is CYP81E1, also called isoflavone 2'-hydroxylase, that catalyzes the hydroxylation of isoflavones, daidzein, and formononetin, to yield 2'-hydroxyisoflavones, 2'-hydroxydaidzein, and 2'-hydroxyformononetin, respectively. It is involved in the biosynthesis of isoflavonoid-derived antimicrobial compounds of legumes. CYP81 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410746 [Multi-domain] Cd Length: 420 Bit Score: 119.63 E-value: 1.49e-28
cytochrome P450 family 93; The cytochrome P450 family 93 (CYP93) is specifically found in ...
218-445
7.26e-28
cytochrome P450 family 93; The cytochrome P450 family 93 (CYP93) is specifically found in flowering plants and could be classified into ten subfamilies, CYP93A-K. CYP93A appears to be the ancestor that was derived in flowering plants, and the remaining subfamiles show lineage-specific distribution: CYP93B and CYP93C are present in dicots; CYP93F is distributed only in Poaceae; CYP93G and CYP93J are monocot-specific; CYP93E is unique to legumes; CYP93H and CYP93K are only found in Aquilegia coerulea; and CYP93D is Brassicaceae-specific. Members of this family include: Glycyrrhiza echinata CYP93B1, also called licodione synthase (EC 1.14.14.140), that catalyzes the formation of licodione and 2-hydroxynaringenin from (2S)-liquiritigenin and (2S)-naringenin, respectively; and Glycine max CYP93A1, also called 3,9-dihydroxypterocarpan 6A-monooxygenase (EC 1.14.14.93), that is involved in the biosynthesis of the phytoalexin glyceollin. CYP93 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410748 [Multi-domain] Cd Length: 433 Bit Score: 118.08 E-value: 7.26e-28
cytochrome P450 family 27, subfamily C, polypeptide 1, also called all-trans retinol 3, ...
219-448
7.16e-26
cytochrome P450 family 27, subfamily C, polypeptide 1, also called all-trans retinol 3,4-desaturase; Cytochrome P450 27C1 (CYP27C1) is also called all-trans retinol 3,4-desaturase. It catalyzes the conversion of all-trans retinol (also called vitamin A1, the precursor of 11-cis retinal) to 3,4-didehydroretinol (also called vitamin A2, the precursor of 11-cis 3,4-didehydroretinal). CYP27C1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410740 [Multi-domain] Cd Length: 433 Bit Score: 111.93 E-value: 7.16e-26
cytochrome P450 family 75; The cytochrome P450 family 75 (CYP75) play important roles in the ...
97-427
8.51e-25
cytochrome P450 family 75; The cytochrome P450 family 75 (CYP75) play important roles in the biosynthesis of colored class of flavonoids, anthocyanins, which confer a diverse range of colors to flowers from orange to red to violet and blue. The number of hydroxyl groups on the B-ring of anthocyanidins, the chromophores and precursors of anthocyanins, impact the anthocyanin color - the more the bluer. The hydroxylation pattern is determined by CYP75 proteins: flavonoid 3'-hydroxylase (F3'H, EC 1.14.14.82) and and flavonoid 3',5'-hydroxylase (F3'5'H, EC 1.14.14.81), which belong to CYP75B and CYP75A subfamilies, respectively. Both enzymes have broad substrate specificity and catalyze the hydroxylation of flavanones, dihydroflavonols, flavonols and flavones. F3'H catalyzes the 3'-hydroxylation of the flavonoid B-ring to the 3',4'-hydroxylated state. F3'5'H catalysis leads to trihydroxylated delphinidin-based anthocyanins that tend to have violet/blue colours. CYP75 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410750 [Multi-domain] Cd Length: 438 Bit Score: 108.66 E-value: 8.51e-25
cytochrome P450 family 98; Cytochrome P450 family 98 (CYP98) monooxygenases catalyze the ...
220-427
3.37e-22
cytochrome P450 family 98; Cytochrome P450 family 98 (CYP98) monooxygenases catalyze the meta-hydroxylation step in the phenylpropanoid biosynthetic pathway. CYP98A3, also called p-coumaroylshikimate/quinate 3'-hydroxylase, catalyzes 3'-hydroxylation of p-coumaric esters of shikimic/quinic acids to form lignin monomers. CYP98A8, also called p-coumarate 3-hydroxylase, acts redundantly with CYP98A9 as tricoumaroylspermidine meta-hydroxylase. CYP98 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410749 [Multi-domain] Cd Length: 432 Bit Score: 100.64 E-value: 3.37e-22
cytochrome P450 family 142 and similar cytochrome P450s; This family is composed of cytochrome ...
54-429
1.16e-21
cytochrome P450 family 142 and similar cytochrome P450s; This family is composed of cytochrome P450s (CYPs) with similarity to Streptomyces sp. P450sky (also called CYP163B3), Sphingopyxis macrogoltabida P450pyr hydroxylase, Novosphingobium aromaticivorans CYP108D1, Pseudomonas sp. cytochrome P450-Terp (P450terp), and Amycolatopsis balhimycina P450 OxyD, as well as several Mycobacterium proteins CYP124, CYP125, CYP126, and CYP142. P450sky is involved in the hydroxylation of three beta-hydroxylated amino acid precursors required for the biosynthesis of the cyclic depsipeptide skyllamycin. P450pyr hydroxylase is an active and selective catalyst for the regio- and stereo-selective hydroxylation at non-activated carbon atoms with a broad substrate range. P450terp catalyzes the hydroxylation of alpha-terpineol as part of its catabolic assimilation. OxyD is involved in beta-hydroxytyrosine formation during vancomycin biosynthesis. CYP124 is a methyl-branched lipid omega-hydroxylase while CYP142 is a cholesterol 27-oxidase with likely roles in host response modulation and cholesterol metabolism. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410659 [Multi-domain] Cd Length: 378 Bit Score: 98.37 E-value: 1.16e-21
cytochrome P450 family 2, subfamily K; Members of CYP2K are present in fish, birds, and ...
39-426
1.93e-21
cytochrome P450 family 2, subfamily K; Members of CYP2K are present in fish, birds, and amphibians. CYP2K6 from zebrafish has been shown to catalyze the conversion of aflatoxin B1 (AFB1) to its cytotoxic derivative AFB1 exo-8,9-epoxide, while its ortholog in rainbow trout CYP2K1 is also capable of oxidizing lauric acid. In birds, CYP2K is one of the largest CYP2 subfamilies. The CYP2K subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410757 [Multi-domain] Cd Length: 424 Bit Score: 98.34 E-value: 1.93e-21
cytochrome P450 family 130-like and similar cytochrome P450s; This subfamily includes ...
54-427
3.85e-21
cytochrome P450 family 130-like and similar cytochrome P450s; This subfamily includes Mycobacterium tuberculosis cytochrome P450 130 (CYP130), Rhodococcus erythropolis CYP116, and similar bacterial proteins. CYP130 catalyzes the N-demethylation of dextromethorphan, and has also shown a natural propensity to bind primary arylamines. CYP116 is involved in the degradation of thiocarbamate herbicides. The CYP130-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410700 [Multi-domain] Cd Length: 380 Bit Score: 96.90 E-value: 3.85e-21
fungal cytochrome P450s similar to TRI13; This subfamily is composed of cytochrome P450 ...
258-428
5.75e-21
fungal cytochrome P450s similar to TRI13; This subfamily is composed of cytochrome P450 monooxygenase TRI13, also called core trichothecene cluster (CTC) protein 13, and similar proteins. The tri13 gene is located in the trichothecene biosynthesis gene cluster in Fusarium species, which produce a great diversity of agriculturally important trichothecene toxins that differ from each other in their pattern of oxygenation and esterification. Trichothecenes comprise a large family of chemically related bicyclic sesquiterpene compounds acting as mycotoxins, including the T2-toxin; TRI13 is required for the addition of the C-4 oxygen of T-2 toxin. The TRI13-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410715 [Multi-domain] Cd Length: 494 Bit Score: 97.76 E-value: 5.75e-21
cytochrome P450-pinF1 and similar cytochrome P450s; This subfamily is composed of bacterial ...
50-426
6.34e-21
cytochrome P450-pinF1 and similar cytochrome P450s; This subfamily is composed of bacterial CYPs similar to Agrobacterium tumefaciens plant-inducible cytochrome P450-pinF1, which is not essential for virulence but may be involved in the detoxification of plant protective agents at the site of wounding. The P450-pinF1-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410722 [Multi-domain] Cd Length: 353 Bit Score: 95.83 E-value: 6.34e-21
cytochrome P450 family 2, subfamily U, polypeptide 1; CYP2U1 is a thymus- and brain-specific ...
255-451
2.11e-20
cytochrome P450 family 2, subfamily U, polypeptide 1; CYP2U1 is a thymus- and brain-specific cytochrome P450 that catalyzes omega- and (omega-1)-hydroxylation of fatty acids such as arachidonic acid, docosahexaenoic acid, and other long chain fatty acids. Mutations in CYP2U1 are associated with hereditary spastic paraplegia (HSP), a neurological disorder, and pigmentary degenerative maculopathy associated with progressive spastic paraplegia. CYP2U1 belongs to family 2 of the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410759 [Multi-domain] Cd Length: 426 Bit Score: 95.23 E-value: 2.11e-20
cytochrome P450 family 27, subfamily A, polypeptide 1, also called vitamin D(3) 25-hydroxylase; ...
39-429
1.18e-19
cytochrome P450 family 27, subfamily A, polypeptide 1, also called vitamin D(3) 25-hydroxylase; Cytochrome P450 27A1 (CYP27A1, EC 1.14.15.15) is also called CYP27, cholestanetriol 26-monooxygenase, sterol 26-hydroxylase, 5-beta-cholestane-3-alpha,7-alpha,12-alpha-triol 27-hydroxylase, cytochrome P-450C27/25, sterol 27-hydroxylase, or vitamin D(3) 25-hydroxylase. It catalyzes the first step in the oxidation of the side chain of sterol intermediates, the 27-hydroxylation of 5-beta-cholestane-3-alpha,7-alpha,12-alpha-triol, and the first three sterol side chain oxidations in bile acid biosynthesis via the neutral (classic) pathway. It also hydroxylates vitamin D3 at the 25-position, as well as cholesterol at positions 24 and 25. CYP27A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410739 [Multi-domain] Cd Length: 430 Bit Score: 93.19 E-value: 1.18e-19
cytochrome P450 family 2, subfamily W, polypeptide 1; Cytochrome P450 2W1 (CYP2W1) is ...
39-428
1.87e-19
cytochrome P450 family 2, subfamily W, polypeptide 1; Cytochrome P450 2W1 (CYP2W1) is expressed during development of the gastrointestinal tract, is silenced after birth in the intestine and colon by epigenetic modifications, but is activated following demethylation in colorectal cancer (CRC). Its expression levels in CRC correlate with the degree of malignancy, are higher in metastases and are predictive of survival. Thus, it is an attractive tumor-specific diagnostic and therapeutic target. CYP2W1 belongs to family 2 of the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410764 [Multi-domain] Cd Length: 422 Bit Score: 92.17 E-value: 1.87e-19
cytochrome P450 family 134, subfamily A, polypeptide 1; Cytochrome P450 134A1 (CYP134A1, EC 1. ...
105-423
2.82e-19
cytochrome P450 family 134, subfamily A, polypeptide 1; Cytochrome P450 134A1 (CYP134A1, EC 1.14.15.13), also called pulcherriminic acid synthase or cyclo-L-leucyl-L-leucyl dipeptide oxidase or cytochrome P450 CYPX, catalyzes the oxidation of cyclo(L-Leu-L-Leu) (cLL) to yield pulcherriminic acid which forms the red pigment pulcherrimin via a non-enzymatic spontaneous reaction with Fe(3+). It belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410702 [Multi-domain] Cd Length: 370 Bit Score: 90.99 E-value: 2.82e-19
cytochrome P450 306A1 and similar cytochrome P450s; This subfamily is composed of insect and ...
203-451
3.49e-19
cytochrome P450 306A1 and similar cytochrome P450s; This subfamily is composed of insect and crustacean cytochrome P450s including insect cytochrome P450 306A1 (CYP306A1 or Cyp306a1) and CYP18A1. CYP306A1 functions as a carbon 25-hydroxylase and has an essential role in ecdysteroid biosynthesis during insect development. CYP18A1 is a 26-hydroxylase and plays a key role in steroid hormone inactivation. The CYP306A1-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410745 [Multi-domain] Cd Length: 432 Bit Score: 91.70 E-value: 3.49e-19
cytochrome P450 family 24, subfamily A, polypeptide 1, also called vitamin D(3) 24-hydroxylase; ...
88-455
3.69e-19
cytochrome P450 family 24, subfamily A, polypeptide 1, also called vitamin D(3) 24-hydroxylase; Cytochrome P450 24A1 (CYP24A1, EC 1.14.15.16) is also called 1,25-dihydroxyvitamin D(3) 24-hydroxylase (24-OHase), vitamin D(3) 24-hydroxylase, or cytochrome P450-CC24. It catalyzes the NADPH-dependent 24-hydroxylation of calcidiol (25-hydroxyvitamin D(3)) and calcitriol (1-alpha,25-dihydroxyvitamin D(3) or 1,25(OH)2D3). CYP24A1 regulates vitamin D activity through its hydroxylation of calcitriol, the physiologically active vitamin D hormone, which controls gene-expression and signal-transduction processes associated with calcium homeostasis, cellular growth, and the maintenance of heart, muscle, immune, and skin function. CYP24A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410738 [Multi-domain] Cd Length: 419 Bit Score: 91.41 E-value: 3.69e-19
cytochrome P450 2R1; CYP2R1, also called vitamin D 25-hydroxylase (EC 1.14.14.24), is a ...
243-451
5.65e-19
cytochrome P450 2R1; CYP2R1, also called vitamin D 25-hydroxylase (EC 1.14.14.24), is a microsomal enzyme that is required for the activation of vitamin D; it catalyzes the initial step converting vitamin D into 25-hydroxyvitamin D (25(OH)D), the major circulating metabolite of vitamin D. The 1alpha-hydroxylation of 25(OH)D by CYP27B1 generates the fully active vitamin D metabolite, 1,25-dihydroxyvitamin D (1,25(OH)2D). Mutations in the CYP2R1 gene are associated with an atypical form of vitamin D-deficiency rickets, which has been classified as vitamin D dependent rickets type 1B. CYP2R1 belongs to family 2 of the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410754 [Multi-domain] Cd Length: 436 Bit Score: 91.03 E-value: 5.65e-19
cytochrome P450 family 2; The cytochrome P450 family 2 (CYP2 or Cyp2) is one of the largest, ...
238-428
5.96e-19
cytochrome P450 family 2; The cytochrome P450 family 2 (CYP2 or Cyp2) is one of the largest, most diverse CYP families in vertebrates. It includes many subfamilies across vertebrate species but not all subfamilies are found in multiple vertebrate taxonomic classes. The CYP2U and CYP2R genes are present in the vertebrate ancestor and are shared across all vertebrate classes, whereas some subfamilies are lineage-specific, such as CYP2B and CYP2S in mammals. CYP2 enzymes play important roles in drug metabolism. The CYP2 family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410652 [Multi-domain] Cd Length: 425 Bit Score: 90.70 E-value: 5.96e-19
cytochrome P450 family 503, subfamily A, polypeptide 1 and similar cytochrome P450s; This ...
42-428
9.86e-19
cytochrome P450 family 503, subfamily A, polypeptide 1 and similar cytochrome P450s; This family is composed of predominantly fungal cytochrome P450s (CYPs) with similarity to Fusarium fujikuroi Cytochrome P450 503A1 (CYP503A1, also called ent-kaurene oxidase or cytochrome P450-4), Aspergillus nidulans austinol synthesis protein I (ausI), Alternaria alternata tentoxin synthesis protein 1 (TES1), and Acanthamoeba polyphaga mimivirus cytochrome P450 51 (CYP51, also called P450-LIA1 or sterol 14-alpha demethylase). Ent-kaurene oxidase catalyzes three successive oxidations of the 4-methyl group of ent-kaurene to form kaurenoic acid, an intermediate in gibberellin biosynthesis. AusI and TES1 are cytochrome P450 monooxygenases that mediate the biosynthesis of the meroterpenoids, austinol and dehydroaustinol, and the phytotoxin tentoxin, respectively. P450-LIA1 catalyzes the 14-alpha demethylation of obtusifoliol and functions in steroid biosynthesis. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410667 [Multi-domain] Cd Length: 441 Bit Score: 90.43 E-value: 9.86e-19
C-22 sterol desaturase subfamily, such as fungal cytochrome P450 61 and plant cytochrome P450 ...
254-427
1.20e-18
C-22 sterol desaturase subfamily, such as fungal cytochrome P450 61 and plant cytochrome P450 710; C-22 sterol desaturase (EC 1.14.19.41), also called sterol 22-desaturase, is required for the formation of the C-22 double bond in the sterol side chain of delta22-unsaturated sterols, which are present specifically in fungi and plants. This enzyme is also called cytochrome P450 61 (CYP61) in fungi and cytochrome P450 710 (CYP710) in plants. The CYP61/CYP710 subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410703 [Multi-domain] Cd Length: 415 Bit Score: 89.61 E-value: 1.20e-18
cytochrome P450 family 19, subfamily A, polypeptide 1; CYP19A1, also called aromatase or ...
191-428
1.22e-18
cytochrome P450 family 19, subfamily A, polypeptide 1; CYP19A1, also called aromatase or estrogen synthetase (EC 1.14.14.14), catalyzes the formation of aromatic C18 estrogens from C19 androgens. The CYP19A1 subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410709 [Multi-domain] Cd Length: 414 Bit Score: 89.73 E-value: 1.22e-18
cytochrome P450 family 164 and similar cytochrome P450s; This group is composed mostly of ...
54-426
2.23e-18
cytochrome P450 family 164 and similar cytochrome P450s; This group is composed mostly of bacterial cytochrome P450s from multiple families, including Mycobacterium smegmatis CYP164A2, Streptomyces sp. CYP245A1, Bacillus subtilis CYP107H1, Micromonospora echinospora P450 oxidase Calo2, and putative P450s such as Xylella fastidiosa CYP133 and Mycobacterium tuberculosis CYP140. CYP107H1, also called cytochrome P450(BioI), catalyzes the C-C bond cleavage of fatty acid linked to acyl carrier protein (ACP) to generate pimelic acid for biotin biosynthesis. CYP245A1, also called cytochrome P450 StaP, catalyzes the intramolecular C-C bond formation and oxidative decarboxylation of chromopyrrolic acid (CPA) to form the indolocarbazole core, a key step in staurosporine biosynthesis. CalO2 is involved in calicheamicin biosynthesis. The CYP164-like group belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410718 [Multi-domain] Cd Length: 369 Bit Score: 88.38 E-value: 2.23e-18
cytochrome P450 family 79; Cytochrome P450 family 79 (CYP79) enzymes catalyze the first ...
220-427
2.55e-18
cytochrome P450 family 79; Cytochrome P450 family 79 (CYP79) enzymes catalyze the first committed step in the biosynthesis of the core structure of glucosinolates, the conversion of amino acids to the corresponding aldoximes. Glucosinolates are amino acid-derived natural plant products that function in the defense against herbivores and microorganisms. Arabidopsis thaliana contains seven family members: CYP79B2 and CYP79B3, which metabolize trytophan; CYP79F1 and CYP79F2, which metabolize chain-elongated methionine derivatives with respectively 1-6 or 5-6 additional methylene groups in the side chain; CYP79A2 that metabolizes phenylalanine; and CYP79C1 and CYP79C2, with unknown function. CYP79 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410751 [Multi-domain] Cd Length: 444 Bit Score: 88.96 E-value: 2.55e-18
cytochrome P450 monooxygenases similar to gliotoxin biosynthesis protein C; This subfamily is ...
86-428
2.85e-18
cytochrome P450 monooxygenases similar to gliotoxin biosynthesis protein C; This subfamily is composed of cytochrome P450 monooxygenases that are part of gene clusters involved in the biosynthesis of various compounds such as mycotoxins and alkaloids, including Aspergillus fumigatus gliotoxin biosynthesis protein (GliC), Penicillium rubens roquefortine/meleagrin synthesis protein R (RoqR), Aspergillus oryzae aspirochlorine biosynthesis protein C (AclC), Aspergillus terreus bimodular acetylaranotin synthesis protein ataTC, Kluyveromyces lactis pulcherrimin biosynthesis cluster protein 2 (PUL2), and Aspergillus nidulans aspyridones biosynthesis protein B (ApdB). The GliC-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410708 [Multi-domain] Cd Length: 409 Bit Score: 88.50 E-value: 2.85e-18
cytochrome P450epok and similar cytochrome P450s; Sorangium cellulosum cytochrome P450epoK is ...
176-426
2.87e-18
cytochrome P450epok and similar cytochrome P450s; Sorangium cellulosum cytochrome P450epoK is a heme-containing monooxygenase which participates in epothilone biosynthesis where it catalyzes the epoxidation of epothilones C and D into epothilones A and B, respectively. This subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410723 [Multi-domain] Cd Length: 373 Bit Score: 87.87 E-value: 2.87e-18
cytochrome P450 EryK and similar cytochrome P450s; This subfamily contains archaeal and ...
212-429
3.13e-18
cytochrome P450 EryK and similar cytochrome P450s; This subfamily contains archaeal and bacterial CYPs including Saccharopolyspora erythraea P450 EryK, Saccharolobus solfataricus cytochrome P450 119 (CYP119), Picrophilus torridus CYP231A2, Bacillus subtilis CYP109, Streptomyces himastatinicus HmtT and HmtN, and Bacillus megaterium CYP106A2, among others. EryK, also called erythromycin C-12 hydroxylase, is active during the final steps of erythromycin A (ErA) biosynthesis. CYP106A2 catalyzes the hydroxylation of a variety of 3-oxo-delta(4)-steroids such as progesterone and deoxycorticosterone, mainly in the 15beta-position. It is also capable of hydroxylating a variety of terpenoids. HmtT and HmtN is involved in the post-tailoring of the cyclohexadepsipeptide backbone during the biosynthesis of the himastatin antibiotic. The EryK-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410658 [Multi-domain] Cd Length: 368 Bit Score: 87.65 E-value: 3.13e-18
cytochrome P450 family 27, subfamily B, polypeptide 1, also called calcidiol 1-monooxygenase; ...
88-428
6.65e-17
cytochrome P450 family 27, subfamily B, polypeptide 1, also called calcidiol 1-monooxygenase; Cytochrome p450 27B1 (CYP27B1) is also called calcidiol 1-monooxygenase (EC 1.14.15.18), 25-hydroxyvitamin D(3) 1-alpha-hydroxylase (VD3 1A hydroxylase), 25-hydroxyvitamin D-1 alpha hydroxylase, 25-OHD-1 alpha-hydroxylase, 25-hydroxycholecalciferol 1-hydroxylase, or 25-hydroxycholecalciferol 1-monooxygenase. It catalyzes the conversion of 25-hydroxyvitamin D3 (25(OH)D3) to 1-alpha,25-dihydroxyvitamin D3 (1,25(OH)2D3 or calcitriol), and of 24,25-dihydroxyvitamin D3 (24,25(OH)(2)D3) to 1-alpha,24,25-trihydroxyvitamin D3 (1alpha,24,25(OH)(3)D3). It is also active with 25-hydroxy-24-oxo-vitamin D3, and has an important role in normal bone growth, calcium metabolism, and tissue differentiation. CYP27B1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410741 [Multi-domain] Cd Length: 430 Bit Score: 84.42 E-value: 6.65e-17
cytochrome P450 family 2, subfamily J; Members of CYP2J are expressed in multiple tissues in ...
202-451
9.87e-17
cytochrome P450 family 2, subfamily J; Members of CYP2J are expressed in multiple tissues in mice and humans. They function as catalysts of arachidonic acid metabolism and are active in the metabolism of fatty acids to generate bioactive compounds. Human CYP2J2, also called arachidonic acid epoxygenase or albendazole monooxygenase (hydroxylating), is a membrane-bound cytochrome P450 primarily expressed in the heart and plays a significant role in cardiovascular diseases. The CYP2J subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410755 [Multi-domain] Cd Length: 421 Bit Score: 84.08 E-value: 9.87e-17
cytochrome P450 family 158, subfamily A and similar cytochrome P450s; This family is composed ...
40-426
1.02e-16
cytochrome P450 family 158, subfamily A and similar cytochrome P450s; This family is composed of cytochrome P450s (CYPs) with similarity to Streptomyces coelicolor CYP158A1 and CYP158A2, Streptomyces natalensis PimD (also known as CYP107E), Mycobacterium tuberculosis CYP121, and Micromonospora griseorubida MycG (also known as CYP107B). CYP158A1 and CYP158A2 catalyze an unusual oxidative C-C coupling reaction to polymerize flaviolin and form highly conjugated pigments; CYP158A2 produces three isomers of biflaviolin and one triflaviolin while CYP158A1 produces only two isomers of biflaviolin. PimD is a cytochrome P450 monooxygenase with native epoxidase activity that is critical in the biosynthesis of the polyene macrolide antibiotic pimaricin. CYP121 is essential for the viability of M. tuberculosis and is a novel drug target for the inhibition of mycobacterial growth. MycG catalyzes both hydroxylation and epoxidation reactions in the biosynthesis of the 16-membered ring macrolide antibiotic mycinamicin II. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410657 [Multi-domain] Cd Length: 380 Bit Score: 83.38 E-value: 1.02e-16
cytochrome P450 family 73; Cytochrome P450 family 73 (CYP73 pr Cyp73), also called ...
220-454
1.41e-16
cytochrome P450 family 73; Cytochrome P450 family 73 (CYP73 pr Cyp73), also called trans-cinnamate 4-monooxygenase (EC 1.14.14.91) or cinnamic acid 4-hydroxylase, catalyzes the regiospecific 4-hydroxylation of cinnamic acid to form precursors of lignin and many other phenolic compounds. It controls the general phenylpropanoid pathway, and controls carbon flux to pigments essential for pollination or UV protection. CYP73 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410697 [Multi-domain] Cd Length: 434 Bit Score: 83.68 E-value: 1.41e-16
cytochrome P450 family 26, subfamily A, polypeptide 1; Cytochrome P450s 26A1 (CYP26A1) is a ...
79-436
1.64e-16
cytochrome P450 family 26, subfamily A, polypeptide 1; Cytochrome P450s 26A1 (CYP26A1) is a retinoic acid-metabolizing cytochrome that plays key roles in retinoic acid (RA) metabolism. It is the main all-trans-retinoic acid (atRA) hydroxylase that catalyzes the formation of several hydroxylated forms of RA, including 4-OH-RA, 4-oxo-RA and 18-OH-RA. RA is a critical signaling molecule that regulates gene transcription and the cell cycle. CYP26A1 has been shown to upregulate fascin and promote the malignant behavior of breast carcinoma cells. It belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410731 [Multi-domain] Cd Length: 432 Bit Score: 83.32 E-value: 1.64e-16
cytochrome P450 family 78; Characterized cytochrome P450 family 78 (CYP78 or Cyp78) proteins ...
217-444
2.54e-16
cytochrome P450 family 78; Characterized cytochrome P450 family 78 (CYP78 or Cyp78) proteins include: CYP78A5, which is expressed in leaf, flora and embryo, and has been reported to stimulate plant organ growth in Arabidopsis thaliana and to regulate plant architecture, ripening time, and fruit mass in tomato; Glycine max CYP78A10 that functions in regulating seed size/weight and pod number; and Physcomitrella patens CYP78A27 or CYP78A28, which together, are essential in bud formation. The CYP78 family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410699 [Multi-domain] Cd Length: 426 Bit Score: 82.76 E-value: 2.54e-16
P450cin and similar cytochrome P450s; This group is composed of Citrobacter braakii cytochrome ...
87-423
6.92e-16
P450cin and similar cytochrome P450s; This group is composed of Citrobacter braakii cytochrome P450cin (P450cin, also called CYP176A1) and similar proteins. P450cin is a bacterial P450 enzyme that catalyzes the enantiospecific hydroxylation of 1,8-cineole to (1R)-6beta-hydroxycineole; its natural reduction-oxidation partner is cindoxin. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410660 [Multi-domain] Cd Length: 361 Bit Score: 80.46 E-value: 6.92e-16
cytochrome P450 family 2, subfamily D; Members of CYP2D are present in mammals, birds, ...
214-426
1.79e-15
cytochrome P450 family 2, subfamily D; Members of CYP2D are present in mammals, birds, reptiles, and amphibians. The hominin CYP2D subfamily consists of a functional CYP2D6 and two paralogs, CYP2D7 and CYP2D8, that are often not functional in some species. Human CYP2D6 has a high affinity for alkaloids and can detoxify them. It is also responsible for metabolizing about 25% of commonly used drugs, such as antidepressants, beta-blockers, and antiarrhythmics. The CYP2D subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410756 [Multi-domain] Cd Length: 428 Bit Score: 80.12 E-value: 1.79e-15
cytochrome P450 family 107 and similar cytochrome P450s; This group contains bacterial ...
215-426
2.10e-15
cytochrome P450 family 107 and similar cytochrome P450s; This group contains bacterial cytochrome P450s from families 107 (CYP107), 154 (CYP154), 197 (CYP197), and similar proteins. Among the members of this group are: Pseudonocardia autotrophica vitamin D(3) 25-hydroxylase (also known as CYP197A; EC 1.14.15.15) that catalyzes the hydroxylation of vitamin D(3) into 25-hydroxyvitamin D(3) and 1-alpha,25-dihydroxyvitamin D(3), its physiologically active forms; Saccharopolyspora erythraea CYP107A1, also called P450eryF or 6-deoxyerythronolide B hydroxylase (EC 1.14.15.35), that catalyzes the conversion of 6-deoxyerythronolide B (6-DEB) to erythronolide B (EB) by the insertion of an oxygen at the 6S position of 6-DEB; Bacillus megaterium CYP107DY1 that displays C6-hydroxylation activity towards mevastatin to produce pravastatin; Streptomyces coelicolor CYP154C1 that shows activity towards 12- and 14-membered ring macrolactones in vitro and may be involved in catalyzing the site-specific oxidation of the precursors to macrolide antibiotics, which introduces regiochemical diversity into the macrolide ring system; and Nocardia farcinica CYP154C5 that acts on steroids with regioselectivity and stereoselectivity, converting various pregnans and androstans to yield 16 alpha-hydroxylated steroid products. Bacillus subtilis CYP107H1 is not included in this group. The CYP107-like group belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410655 [Multi-domain] Cd Length: 384 Bit Score: 79.50 E-value: 2.10e-15
P450cam and similar cytochrome P450s; This family is composed of cytochrome P450s (CYPs) with ...
212-419
2.44e-15
P450cam and similar cytochrome P450s; This family is composed of cytochrome P450s (CYPs) with similarity to Pseudomonas putida P450cam and Cyp101 proteins from Novosphingobium aromaticivorans such as CYP101C1 and CYP101D2. P450cam catalyzes the hydroxylation of camphor in a process that involves two electron transfers from the iron-sulfur protein, putidaredoxin. CYP101D2 is capable of oxidizing camphor while CYP101C1 does not bind camphor but is capable of binding and hydroxylating ionone derivatives such as alpha- and beta-ionone and beta-damascone. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410661 [Multi-domain] Cd Length: 359 Bit Score: 78.79 E-value: 2.44e-15
Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding ...
843-1029
6.21e-15
Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding regions of FNR with an iron-sulfur binding cluster domain. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99812 [Multi-domain] Cd Length: 243 Bit Score: 75.72 E-value: 6.21e-15
cytochrome P450 family 105 and similar cytochrome P450s; This group predominantly contains ...
203-426
8.80e-15
cytochrome P450 family 105 and similar cytochrome P450s; This group predominantly contains bacterial cytochrome P450s, including those belonging to families 105 (CYP105) and 165 (CYP165). Also included in this group are fungal family 55 proteins (CYP55). CYP105s are predominantly found in bacteria belonging to the phylum Actinobacteria and the order Actinomycetales, and are associated with a wide variety of pathways and processes, from steroid biotransformation to production of macrolide metabolites. CYP105A1 catalyzes two sequential hydroxylations of vitamin D3 with differing specificity and cytochrome P450-SOY (also known as CYP105D1) has been shown to be capable of both oxidation and dealkylation reactions. CYP105D6 and CYP105P1, from the filipin biosynthetic pathway, perform highly regio- and stereospecific hydroxylations. Other members of this group include, but are not limited to: CYP165D3 (also called OxyE) from the teicoplanin biosynthetic gene cluster of Actinoplanes teichomyceticus, which is responsible for the phenolic coupling of the aromatic side chains of the first and third peptide residues in the teicoplanin peptide; Micromonospora griseorubida cytochrome P450 MycCI that catalyzes hydroxylation at the C21 methyl group of mycinamicin VIII, the earliest macrolide form in the postpolyketide synthase tailoring pathway; and Fusarium oxysporum CYP55A1 (also called nitric oxide reductase cytochrome P450nor) that catalyzes an unusual reaction, the direct electron transfer from NAD(P)H to bound heme. The CYP105-like group belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410656 [Multi-domain] Cd Length: 381 Bit Score: 77.56 E-value: 8.80e-15
Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding ...
843-1029
5.74e-14
Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding regions of FNR with an iron-sulfur binding cluster domain. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap between the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99813 [Multi-domain] Cd Length: 235 Bit Score: 72.68 E-value: 5.74e-14
cytochrome P450 family 7, subfamily A, polypeptide 1; Cytochrome P450 7A1 (CYP7A1) is also ...
248-430
1.55e-13
cytochrome P450 family 7, subfamily A, polypeptide 1; Cytochrome P450 7A1 (CYP7A1) is also called cholesterol 7-alpha-monooxygenase (EC 1.14.14.23) or cholesterol 7-alpha-hydroxylase. It catalyzes the hydroxylation at position 7 of cholesterol, a rate-limiting step in the classic (or neutral) pathway of cholesterol catabolism and bile acid biosynthesis. It is important for cholesterol homeostasis. CYP7A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410724 [Multi-domain] Cd Length: 451 Bit Score: 74.34 E-value: 1.55e-13
cytochrome P450 family 199, subfamily A, polypeptide 2 and similar cytochrome P450s; This ...
248-430
1.85e-13
cytochrome P450 family 199, subfamily A, polypeptide 2 and similar cytochrome P450s; This family is composed of cytochrome P450s (CYPs) with similarity to Rhodopseudomonas palustris CYP199A2 and CYP199A4. CYP199A2 catalyzes the oxidation of aromatic carboxylic acids including indole-2-carboxylic acid, 2-naphthoic acid and 4-ethylbenzoic acid. CYP199A4 catalyzes the hydroxylation of para-substituted benzoic acids. This family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410663 [Multi-domain] Cd Length: 371 Bit Score: 73.39 E-value: 1.85e-13
cytochrome P450 family 20, subfamily A, polypeptide 1; Cytochrome P450, family 20, subfamily A, ...
198-448
2.03e-13
cytochrome P450 family 20, subfamily A, polypeptide 1; Cytochrome P450, family 20, subfamily A, polypeptide 1 (cytochrome P450 20A1 or CYP20A1) is expressed in human hippocampus and substantia nigra. In zebrafish, maternal transcript of CYP20A1 occurs in eggs, suggesting involvement in brain and early development. CYP20A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410720 [Multi-domain] Cd Length: 394 Bit Score: 73.31 E-value: 2.03e-13
cytochrome P450 family 2, subfamily C, and similar cytochrome P450s; This CYP2C-like group ...
256-428
2.43e-13
cytochrome P450 family 2, subfamily C, and similar cytochrome P450s; This CYP2C-like group includes CYP2C, and similar CYPs including mammalian CYP2E1, also called 4-nitrophenol 2-hydroxylase, as well as chicken CYP2H1 and CYP2H2. The CYP2C subfamily is composed of four human members (CYP2C8, CYP2C9, CYP2C18, CYP2C19) that metabolize approximately 20% of clinically used drugs, and all four exhibit genetic polymorphisms that results in toxicity or altered efficacy of some drugs in affected individuals. CYP2E1 participates in the metabolism of endogenous substrates, including acetone and fatty acids, and exogenous compounds such as anesthetics, ethanol, nicotine, acetaminophen, aspartame, and chlorzoxazone, among others. The CYP2C-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410758 [Multi-domain] Cd Length: 425 Bit Score: 73.45 E-value: 2.43e-13
cytochrome P450 family 2, subfamily G; CYP2G1 is uniquely expressed in the olfactory mucosa of ...
39-428
2.83e-13
cytochrome P450 family 2, subfamily G; CYP2G1 is uniquely expressed in the olfactory mucosa of rats and rabbits and may have important functions for the olfactory chemosensory system. It is involved in the metabolism of sex steroids and xenobiotic compounds. In cynomolgus monkeys, CYP2G2 is a functional drug-metabolizing enzyme in nasal mucosa. In humans, two different CYP2G genes, CYP2GP1 and CYP2GP2, are pseudogenes because of loss-of-function deletions/mutations. The CYP2G subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410763 [Multi-domain] Cd Length: 425 Bit Score: 73.03 E-value: 2.83e-13
cytochrome P450 family 2, subfamily F; Cytochrome P450 family 2, subfamily F (CYP2F) members ...
245-428
6.09e-13
cytochrome P450 family 2, subfamily F; Cytochrome P450 family 2, subfamily F (CYP2F) members are selectively expressed in lung tissues. They are responsible for the bioactivation of several pneumotoxic and carcinogenic chemicals such as benzene, styrene, naphthalene, and 1,1-dichloroethylene. CYP2F1 and CYP2F3 selectively catalyzes the 3-methyl dehydrogenation of 3-methylindole, forming toxic reactive intermediates that can form adducts with proteins and DNA. The CYP2F subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410762 [Multi-domain] Cd Length: 425 Bit Score: 72.10 E-value: 6.09e-13
unknown subfamily of actinobacterial cytochrome P450s; This subfamily is composed of ...
232-428
1.04e-12
unknown subfamily of actinobacterial cytochrome P450s; This subfamily is composed of uncharacterized cytochrome P450s. Cytochrome P450 (P450, CYP) is a large superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop. Their monooxygenase activity relies on the reductive scission of molecular oxygen bound to the P450 heme iron, and the delivery of two electrons to the heme iron during the catalytic cycle.
Pssm-ID: 410717 [Multi-domain] Cd Length: 376 Bit Score: 70.95 E-value: 1.04e-12
cytochrome P450, family 2, subfamily AB, polypeptide 1 and similar cytochrome P450s; The ...
215-428
2.43e-12
cytochrome P450, family 2, subfamily AB, polypeptide 1 and similar cytochrome P450s; The function of CYP2AB1 is unknown. CYP2AB1 belongs to family 2 of the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410760 [Multi-domain] Cd Length: 423 Bit Score: 70.25 E-value: 2.43e-12
NAD(P)H dependent flavin oxidoreductases use flavin as a substrate in mediating electron ...
836-1032
7.37e-12
NAD(P)H dependent flavin oxidoreductases use flavin as a substrate in mediating electron transfer from iron complexes or iron proteins. Structurally similar to ferredoxin reductases, but with only 15% sequence identity, flavin reductases reduce FAD, FMN, or riboflavin via NAD(P)H. Flavin is used as a substrate, rather than a tightly bound prosthetic group as in flavoenzymes; weaker binding is due to the absence of a binding site for the AMP moeity of FAD.
Pssm-ID: 99786 [Multi-domain] Cd Length: 224 Bit Score: 66.03 E-value: 7.37e-12
cytochrome P450 family 7, subfamily B, polypeptide 1; Cytochrome P450 7B1 (CYP7B1) is also ...
280-428
1.46e-11
cytochrome P450 family 7, subfamily B, polypeptide 1; Cytochrome P450 7B1 (CYP7B1) is also called 25-hydroxycholesterol 7-alpha-hydroxylase (EC 1.14.14.29) or oxysterol 7-alpha-hydroxylase. It catalyzes the 7alpha-hydroxylation of both steroids and oxysterols, and is thus implicated in the metabolism of neurosteroids and bile acid synthesis, respectively. It participates in the alternative (or acidic) pathway of cholesterol catabolism and bile acid biosynthesis. It also mediates the formation of 7-alpha,25-dihydroxycholesterol (7-alpha,25-OHC) from 25-hydroxycholesterol; 7-alpha,25-OHC acts as a ligand for the G protein-coupled receptor GPR183/EBI2, a chemotactic receptor in lymphoid cells. CYP7B1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410725 Cd Length: 438 Bit Score: 67.71 E-value: 1.46e-11
cytochrome P450 family 11, subfamily A, polypeptide 1, also called cholesterol side-chain ...
226-444
7.91e-11
cytochrome P450 family 11, subfamily A, polypeptide 1, also called cholesterol side-chain cleavage enzyme; Cytochrome P450 11A1 (CYP11A1, EC 1.14.15.6) is also called cholesterol side-chain cleavage enzyme, cholesterol desmolase, or cytochrome P450(scc). It catalyzes the side-chain cleavage reaction of cholesterol to form pregnenolone, the precursor of all steroid hormones. Missense or nonsense mutations of the CYP11A1 gene cause mild to severe early-onset adrenal failure depending on the severity of the enzyme dysfunction/deficiency. CYP11A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410736 [Multi-domain] Cd Length: 425 Bit Score: 65.51 E-value: 7.91e-11
cytochrome P450 family 1, subfamily A; Cytochrome P450 family 1, subfamily A (CYP1A) consists ...
251-446
1.54e-10
cytochrome P450 family 1, subfamily A; Cytochrome P450 family 1, subfamily A (CYP1A) consists of two human members, CYP1A1 and CYP1A2, which overlap in their activities. CYP1A2 is the highly expressed cytochrome enzyme in the human liver, while CYP1A1 is mostly found in extrahepatic tissues. Known common substrates include aromatic compounds such as polycyclic aromatic hydrocarbons, arachidonic acid and eicosapentoic acid, as well as melatonin and 6-hydroxylate melatonin. In addition, CYP1A1 activates procarcinogens into carcinogens via epoxides, and metabolizes heterocyclic aromatic amines of industrial origin. CYP1A2 metabolizes numerous natural products that result in toxic products, such as the transformation of methyleugenol to 1'-hydroxymethyleugenol, estragole to reactive metabolites, and oxidation of nephrotoxins. It also plays an important role in the metabolism of several clinical drugs including analgesics, antipyretics, antipsychotics, antidepressants, anti-inflammatory, and cardiovascular drugs. The CYP1A subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410769 [Multi-domain] Cd Length: 437 Bit Score: 64.65 E-value: 1.54e-10
cytochrome P450 family 1, subfamily D, polypeptide 1; The cytochrome P450 1D1 (CYP1D1) gene is ...
252-451
1.78e-10
cytochrome P450 family 1, subfamily D, polypeptide 1; The cytochrome P450 1D1 (CYP1D1) gene is pseudogenized in humans because of five nonsense mutations in the putative coding region. However, in other organisms including cynomolgus monkey, CYP1D1 is a functional drug-metabolizing enzyme that is highly expressed in the liver. CYP1D1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410770 [Multi-domain] Cd Length: 435 Bit Score: 64.35 E-value: 1.78e-10
cytochrome P450 family 2, subfamily A; Cytochrome P450 family 2, subfamily A (CYP2A) includes ...
209-460
2.44e-10
cytochrome P450 family 2, subfamily A; Cytochrome P450 family 2, subfamily A (CYP2A) includes CYP2A1, 2A2, and 2A3 in rats; CYP2A4, 2A5, 2A12, 2A20p, 2A21p, 2A22, and 2A23p in mice; CYP2A6, 2A7, 2A13, 2A18P in humans; CYP2A8, 2A9, 2A14, 2A15, 2A16, and 2A17 in hamsters; CYP2A10 and 2A11 in rabbits; and CYP2A19 in pigs. CYP2A enzymes metabolize numerous xenobiotic compounds, including coumarin, aflatoxin B1, nicotine, cotinine, 1,3-butadiene, and acetaminophen, among others, as well as endogenous compounds, including testosterone, progesterone, and other steroid hormones. Human CYP2A6 is responsible for the systemic clearance of nicotine, while CYP2A13 activates the nicotine-derived procarcinogen 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) into DNA-altering compounds that cause lung cancer. The CYP2A subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410761 [Multi-domain] Cd Length: 425 Bit Score: 64.05 E-value: 2.44e-10
cytochrome P450 AurH and similar cytochrome P450s; This group includes Streptomyces thioluteus ...
213-407
2.61e-10
cytochrome P450 AurH and similar cytochrome P450s; This group includes Streptomyces thioluteus P450 monooxygenase AurH which is uniquely capable of forming a homochiral tetrahydrofuran ring, a vital component of the polyketide antibiotic aureothin. AurH catalyzes an unprecedented tandem oxygenation process: first, it catalyzes an asymmetric hydroxylation of deoxyaureothin to yield (7R)-7-hydroxydeoxyaureothin as an intermediate; and second, it mediates another C-O bond formation that leads to O-heterocyclization. The AurH-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410664 [Multi-domain] Cd Length: 382 Bit Score: 63.54 E-value: 2.61e-10
Benzoate dioxygenase reductase (BenDO) FAD/NAD binding domain. Oxygenases oxidize hydrocarbons using dioxygen as the oxidant. As a Class I bacterial dioxygenases, benzoate dioxygenase like proteins combine an [2Fe-2S] cluster containing N-terminal ferredoxin at the end fused to an FAD/NADP(P) domain. In dioxygenase FAD/NAD(P) binding domain, the reductase transfers 2 electrons from NAD(P)H to the oxygenase which insert into an aromatic substrate, an initial step in microbial aerobic degradation of aromatic rings. Flavin oxidoreductases use flavins as substrates, unlike flavoenzymes which have a flavin prosthetic group.
Pssm-ID: 99805 [Multi-domain] Cd Length: 228 Bit Score: 61.46 E-value: 3.32e-10
cytochrome P450 BJ-4 homolog and similar cytochrome P450s; This group is composed of mostly ...
222-422
3.63e-10
cytochrome P450 BJ-4 homolog and similar cytochrome P450s; This group is composed of mostly uncharacterized proteins including Sinorhizobium fredii CYPBJ-4 homolog. It belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410707 [Multi-domain] Cd Length: 406 Bit Score: 63.23 E-value: 3.63e-10
cytochrome P450 family 2, subfamily B; The human cytochrome P450 family 2, subfamily B (CYP2B) ...
256-428
4.33e-10
cytochrome P450 family 2, subfamily B; The human cytochrome P450 family 2, subfamily B (CYP2B) consists of only one functional member CYP2B6, which shows broad substrate specificity and plays a key role in the metabolism of many clinical drugs, environmental toxins, and endogenous compounds. Rodents have multiple functional CYP2B proteins; mouse subfamily members include CYP2B9, 2B10, 2B13, 2B19, and 2B23. CYP2B enzymes are highly inducible by chemicals that interact with the constitutive androstane receptor (CAR) and/or pregnane X receptor (PXR), such as rifampicin and phenobarbital. The CYP2B subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410765 [Multi-domain] Cd Length: 425 Bit Score: 63.26 E-value: 4.33e-10
C-terminal cytochrome P450 domain of linoleate diol synthase and similar cytochrome P450s; ...
251-412
4.76e-10
C-terminal cytochrome P450 domain of linoleate diol synthase and similar cytochrome P450s; This family contains Gaeumannomyces graminis linoleate diol synthase (LDS) and similar proteins including Ssp1 from the phytopathogenic basidiomycete Ustilago maydis. LDS, also called linoleate (8R)-dioxygenase, catalyzes the dioxygenation of linoleic acid to (8R)-hydroperoxylinoleate and the isomerization of the resulting hydroperoxide to (7S,8S)-dihydroxylinoleate. Ssp1 is expressed in mature teliospores, which are produced by U. maydis only after infection of its host plant, maize. Ssp1 is localized on lipid bodies in germinating teliospores, suggesting a role in the mobilization of storage lipids. LDS and Ssp1 contain an N-terminal dioxygenase domain related to animal heme peroxidases, and a C-terminal cytochrome P450 domain. The LDS-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410705 [Multi-domain] Cd Length: 370 Bit Score: 62.74 E-value: 4.76e-10
cytochrome P450 family 11, subfamily B subfamily; Cytochrome P450 11B (CYP11B) enzymes ...
97-449
5.50e-10
cytochrome P450 family 11, subfamily B subfamily; Cytochrome P450 11B (CYP11B) enzymes catalyze the final steps in the production of glucocorticoids and mineralocorticoids that takes place in the adrenal gland. There are two human CYP11B isoforms: Cyb11B1 (11-beta-hydroxylase or P45011beta), which catalyzes the final step of cortisol synthesis by a one-step reaction from 11-deoxycortisol; and CYP11B2 (aldosterone synthase or P450aldo), which catalyzes three steps in the synthesis of aldosterone. The CYP11B subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410737 [Multi-domain] Cd Length: 428 Bit Score: 62.94 E-value: 5.50e-10
cytochrome P450 family 8, subfamily B, polypeptide 1; Cytochrome P450 8B1 (CYP8B1) is also ...
245-428
2.17e-09
cytochrome P450 family 8, subfamily B, polypeptide 1; Cytochrome P450 8B1 (CYP8B1) is also called 7-alpha-hydroxycholest-4-en-3-one 12-alpha-hydroxylase (EC 1.14.18.8) or sterol 12-alpha-hydroxylase. It is involved in the classic (or neutral) pathway of cholesterol catabolism and bile acid synthesis, and is responsible for sterol 12alpha-hydroxylation, which directs the synthesis to cholic acid (CA). It converts 7-alpha-hydroxy-4-cholesten-3-one into 7-alpha,12-alpha-dihydroxy-4-cholesten-3-one, but also displays broad substrate specificity including other 7-alpha-hydroxylated C27 steroids. CYP8B1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410726 [Multi-domain] Cd Length: 449 Bit Score: 60.84 E-value: 2.17e-09
Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible ...
843-1016
3.41e-09
Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99792 [Multi-domain] Cd Length: 241 Bit Score: 58.73 E-value: 3.41e-09
fungal cytochrome P450s similar to Aspergillus nidulans phenylacetate 2-hydroxylase; This ...
202-449
3.87e-09
fungal cytochrome P450s similar to Aspergillus nidulans phenylacetate 2-hydroxylase; This group includes Aspergillus nidulans phenylacetate 2-hydroxylase (encoded by the phacA gene) and similar fungal cytochrome P450s. PhacA catalyzes the ortho-hydroxylation of phenylacetate, the first step of A. nidulans phenylacetate catabolism. The PhacA-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410689 [Multi-domain] Cd Length: 434 Bit Score: 60.02 E-value: 3.87e-09
cytochrome P450 family 26, subfamily C, polypeptide 1; Cytochrome P450 26C1 (CYP26C1) is a ...
194-412
2.10e-08
cytochrome P450 family 26, subfamily C, polypeptide 1; Cytochrome P450 26C1 (CYP26C1) is a retinoic acid-metabolizing cytochrome that plays key roles in retinoic acid (RA) metabolism. It effectively metabolizes all-trans retinoic acid (atRA), 9-cis-retinoic acid (9-cis-RA), 13-cis-retinoic acid, and 4-oxo-atRA with the highest intrinsic clearance toward 9-cis-RA. RA is a critical signaling molecule that regulates gene transcription and the cell cycle. Loss of function mutations in the CYP26C1 gene cause type IV focal facial dermal dysplasia (FFDD), a rare syndrome characterized by facial lesions resembling aplasia cutis. CYP26C1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410729 [Multi-domain] Cd Length: 431 Bit Score: 57.92 E-value: 2.10e-08
Iron-sulfur binding Ferredoxin Reductase (FNR) proteins combine the FAD and NAD(P) binding ...
843-1038
6.28e-08
Iron-sulfur binding Ferredoxin Reductase (FNR) proteins combine the FAD and NAD(P) binding regions of FNR with a C-terminal iron-sulfur binding cluster domain. FNR was intially identified as a chloroplast reductase activity catalyzing the electron transfer from reduced iron-sulfur protein ferredoxin to NADP+ as the final step in the electron transport mechanism of photosystem I. FNR transfers electrons from reduced ferredoxin to FAD (forming FADH2 via a semiquinone intermediate) and then transfers a hydride ion to convert NADP+ to NADPH. FNR has since been shown to utilize a variety of electron acceptors and donors and has a variety of physiological functions including nitrogen assimilation, dinitrogen fixation, steroid hydroxylation, fatty acid metabolism, oxygenase activity, and methnae assimilation in a variety of organisms. FNR has an NAD(P)-binding sub-domain of the alpha/beta class and a discrete (usually N-terminal) flavin sub-domain which vary in orientation with respect to the NAD(P) binding domain. The N-terminal moeity may contain a flavin prosthetic group (as in flavoenzymes) or use flavin as a substrate. Because flavins such as FAD can exist in oxidized, semiquinone (one- electron reduced), or fully reduced hydroquinone forms, FNR can interact with one and 2 electron carriers. FNR has a strong preference for NADP(H) vs NAD(H).
Pssm-ID: 99788 [Multi-domain] Cd Length: 231 Bit Score: 54.84 E-value: 6.28e-08
cytochrome P450 family 74; The cytochrome P450 74 (CYP74) family controls several enzymatic ...
273-401
6.74e-08
cytochrome P450 family 74; The cytochrome P450 74 (CYP74) family controls several enzymatic conversions of fatty acid hydroperoxides to bioactive oxylipins in plants, some invertebrates, and bacteria. It includes two dehydrases, namely allene oxide synthase (AOS) and divinyl ether synthase (DES), and two isomerases, hydroperoxide lyase (HPL) and epoxyalcohol synthase (EAS). AOS (EC 4.2.1.92, also called hydroperoxide dehydratase), such as Arabidopsis thaliana CYP74A acts on a number of unsaturated fatty-acid hydroperoxides, forming the corresponding allene oxides. DES (EC 4.2.1.121), also called colneleate synthase or CYP74D, catalyzes the selective removal of pro-R hydrogen at C-8 in the biosynthesis of colneleic acid. The linolenate HPL, Arabidopsis thaliana CYP74B2, is required for the synthesis of the green leaf volatiles (GLVs) hexanal and trans-2-hexenal. The fatty acid HPL, Solanum lycopersicum CYP74B, is involved in the biosynthesis of traumatin and C6 aldehydes. The epoxyalcohol synthase Ranunculus japonicus CYP74A88 (also known as RjEAS) specifically converts linoleic acid 9- and 13-hydroperoxides to oxiranyl carbinols 9,10-epoxy-11-hydroxy-12-octadecenoic acid and 11-hydroxy-12,13-epoxy-9-octadecenoic acid, respectively. The CYP74 family belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410694 [Multi-domain] Cd Length: 424 Bit Score: 56.11 E-value: 6.74e-08
FAD_NAD(P)H binding domain of flavohemoglobin. Flavohemoglobins have a globin domain ...
837-1016
7.42e-08
FAD_NAD(P)H binding domain of flavohemoglobin. Flavohemoglobins have a globin domain containing a B-type heme fused with a ferredoxin reductase-like FAD/NAD-binding domain. Flavohemoglobins detoxify nitric oxide (NO) via an NO dioxygenase reaction. The hemoglobin domain adopts a globin fold with an embedded heme molecule. Flavohemoglobins also have a C-terminal reductase domain with bindiing sites for FAD and NAD(P)H. This domain catalyzes the conversion of NO + O2 + NAD(P)H to NO3- + NAD(P)+. Instead of the oxygen transport function of hemoglobins, flavohemoglobins seem to act in NO dioxygenation and NO signalling.
Pssm-ID: 99781 Cd Length: 247 Bit Score: 54.49 E-value: 7.42e-08
unknown subfamily of mostly bacterial cytochrome P450s; This subfamily is composed of ...
104-430
2.04e-07
unknown subfamily of mostly bacterial cytochrome P450s; This subfamily is composed of uncharacterized cytochrome P450s, predominantly from bacteria. Cytochrome P450 (P450, CYP) is a large superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop. Their monooxygenase activity relies on the reductive scission of molecular oxygen bound to the P450 heme iron, and the delivery of two electrons to the heme iron during the catalytic cycle.
Pssm-ID: 410701 [Multi-domain] Cd Length: 350 Bit Score: 54.28 E-value: 2.04e-07
flavodoxin, short chain; Flavodoxins are small redox-active proteins with a flavin ...
497-630
3.81e-07
flavodoxin, short chain; Flavodoxins are small redox-active proteins with a flavin mononucleotide (FMN) prosthetic group. They can act in nitrogen fixation by nitrogenase, in sulfite reduction, and light-dependent NADP+ reduction in during photosynthesis, among other roles. This model describes the short chain type. Many of these are involved in sulfite reduction. [Energy metabolism, Electron transport]
Pssm-ID: 273789 [Multi-domain] Cd Length: 140 Bit Score: 50.41 E-value: 3.81e-07
Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding ...
843-1029
6.65e-07
Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding regions of FNR with an iron-sulfur binding cluster domain. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal portion of the FAD/NAD binding domain contains most of the NADP(H) binding residues and the N-terminal sub-domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. In this ferredoxin like sub-group, the FAD/NAD sub-domains is typically fused to a C-terminal iron-sulfur binding domain. Iron-sulfur proteins play an important role in electron transfer processes and in various enzymatic reactions. The family includes plant and algal ferredoxins which act as electron carriers in photosynthesis and ferredoxins which participate in redox chains from bacteria to mammals. Ferredoxin reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99811 [Multi-domain] Cd Length: 231 Bit Score: 51.44 E-value: 6.65e-07
prostacyclin Synthase, also called cytochrome P450 family 8, subfamily A, polypeptide 1; ...
283-430
7.19e-07
prostacyclin Synthase, also called cytochrome P450 family 8, subfamily A, polypeptide 1; Prostacyclin synthase, also called prostaglandin I2 synthase (PGIS) or cytochrome P450 8a1 (CYP8A1), catalyzes the isomerization of prostaglandin H2 to prostacyclin (or prostaglandin I2), a potent mediator of vasodilation and anti-platelet aggregation. It belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410727 [Multi-domain] Cd Length: 442 Bit Score: 52.84 E-value: 7.19e-07
cytochrome P450 family 1, subfamily B, polypeptide 1 and similar cytochrome P450s; Cytochrome ...
249-451
8.13e-07
cytochrome P450 family 1, subfamily B, polypeptide 1 and similar cytochrome P450s; Cytochrome P450 1B1 (CYP1B1) is expressed in liver and extrahepatic tissues where it carries out the metabolism of numerous xenobiotics, including metabolic activation of polycyclic aromatic hydrocarbons. It is also important in regulating endogenous metabolic pathways, including the metabolism of steroid hormones, fatty acids, melatonin, and vitamins. CYP1B1 is overexpressed in a wide variety of tumors and is associated with angiogenesis. It is also associated with adipogenesis, obesity, hypertension, and atherosclerosis. It is therefore a target for the treatment of metabolic diseases and cancer. Also included in this subfamily are CYP1C proteins from fish, birds and amphibians. The CYP1B1-like subfamily belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410768 [Multi-domain] Cd Length: 434 Bit Score: 52.70 E-value: 8.13e-07
The oxygenase reductase FAD/NADH binding domain acts as part of the multi-component bacterial ...
842-987
9.45e-07
The oxygenase reductase FAD/NADH binding domain acts as part of the multi-component bacterial oxygenases which oxidize hydrocarbons using oxygen as the oxidant. Electron transfer is from NADH via FAD (in the oxygenase reductase) and an [2FE-2S] ferredoxin center (fused to the FAD/NADH domain and/or discrete) to the oxygenase. Dioxygenases add both atoms of oxygen to the substrate, while mono-oxygenases (aka mixed oxygenases) add one atom to the substrate and one atom to water. In dioxygenases, Class I enzymes are 2 component, containing a reductase with Rieske type [2Fe-2S] redox centers and an oxygenase. Class II are 3 component, having discrete flavin and ferredoxin proteins and an oxygenase. Class III have 2 [2Fe-2S] centers, one fused to the flavin domain and the other separate.
Pssm-ID: 99784 [Multi-domain] Cd Length: 224 Bit Score: 51.05 E-value: 9.45e-07
cytochrome P450 family 26, subfamily B, polypeptide 1; Cytochrome P450 26B1 (CYP26B1) is a ...
248-411
1.50e-06
cytochrome P450 family 26, subfamily B, polypeptide 1; Cytochrome P450 26B1 (CYP26B1) is a retinoic acid-metabolizing cytochrome that plays key roles in retinoic acid (RA) metabolism. It is an all-trans-retinoic acid (atRA) hydroxylase that catalyzes the formation of similar metabolites as CYP26A1. RA is a critical signaling molecule that regulates gene transcription and the cell cycle. In rats, CYP26B1 regulates sex-specific timing of meiotic initiation, independent of RA signaling. CYP26B1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410730 [Multi-domain] Cd Length: 430 Bit Score: 51.77 E-value: 1.50e-06
cytochrome P450 family 39, subfamily A, polypeptide 1; Cytochrome P450 39A1 (CYP39A1) is also ...
277-430
3.65e-06
cytochrome P450 family 39, subfamily A, polypeptide 1; Cytochrome P450 39A1 (CYP39A1) is also called 24-hydroxycholesterol 7-alpha-hydroxylase (EC 1.14.14.26) or oxysterol 7-alpha-hydroxylase. It is involved in the metabolism of bile acids and has a preference for 24-hydroxycholesterol, converting it into the 7-alpha-hydroxylated product. It may play a role in the alternative bile acid synthesis pathway in the liver. CYP39A1 belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
Pssm-ID: 410728 Cd Length: 410 Bit Score: 50.77 E-value: 3.65e-06
NAD(P) binding domain of ferredoxin reductase-like proteins catalyze electron transfer ...
913-1032
9.92e-06
NAD(P) binding domain of ferredoxin reductase-like proteins catalyze electron transfer between an NAD(P)-binding sub-domain of the alpha/beta class and a discrete (usually N-terminal) domain, which varies in orientation with respect to the NAD(P) binding domain. The N-terminal domain may contain a flavin prosthetic group (as in flavoenzymes) or use flavin as a substrate. Ferredoxin is reduced in the final stage of photosystem I. The flavoprotein Ferredoxin-NADP+ reductase transfers electrons from reduced ferredoxin to FAD (forming FADH2 via a semiquinone intermediate) which then transfers a hydride ion to convert NADP+ to NADPH.
Pssm-ID: 99795 [Multi-domain] Cd Length: 216 Bit Score: 47.64 E-value: 9.92e-06
Methane monooxygenase (MMO) reductase of methanotrophs catalyzes the NADH-dependent ...
866-1016
1.28e-05
Methane monooxygenase (MMO) reductase of methanotrophs catalyzes the NADH-dependent hydroxylation of methane to methanol. This multicomponent enzyme mediates electron transfer via a hydroxylase (MMOH), a coupling protein, and a reductase which is comprised of an N-terminal [2Fe-2S] ferredoxin domain, an FAD binding subdomain, and an NADH binding subdomain. Oxygenases oxidize hydrocarbons using dioxygen as the oxidant. Dioxygenases add both atom of oxygen to the substrate, while mono-oxygenases add one atom to the substrate and one atom to water.
Pssm-ID: 99806 Cd Length: 236 Bit Score: 47.72 E-value: 1.28e-05
AknT-like proteins; This family is composed of proteins similar to Streptomyces biosynthesis ...
263-426
3.60e-05
AknT-like proteins; This family is composed of proteins similar to Streptomyces biosynthesis proteins including anthracycline biosynthesis proteins DnrQ and AknT, and macrolide antibiotic biosynthesis proteins TylM3 and DesVIII. Streptomyces peucetius DnrQ is involved in the biosynthesis of carminomycin and daunorubicin (daunomycin) while Streptomyces galilaeus AknT functions in the biosynthesis of aclacinomycin A. Streptomyces fradiae TylM3 is involved in the biosynthesis of tylosin derived from the polyketide lactone tylactone, and Streptomyces venezuelae functions in the biosynthesis of methymycin, neomethymycin, narbomycin, and pikromycin. These proteins are required for the glycosylation of specific substrates during the biosynthesis of specific anthracyclines and macrolide antibiotics. Although members of this family belong to the large cytochrome P450 (P450, CYP) superfamily and show significant similarity to cytochrome P450s, they lack heme-binding sites and are not functional cytochromes.
Pssm-ID: 410662 [Multi-domain] Cd Length: 340 Bit Score: 47.10 E-value: 3.60e-05
Cytochrome b5 reductase catalyzes the reduction of 2 molecules of cytochrome b5 using NADH as ...
876-1016
4.18e-05
Cytochrome b5 reductase catalyzes the reduction of 2 molecules of cytochrome b5 using NADH as an electron donor. Like ferredoxin reductases, these proteins have an N-terminal FAD binding subdomain and a C-terminal NADH binding subdomain, separated by a cleft, which accepts FAD. The NADH-binding moiety interacts with part of the FAD and resembles a Rossmann fold. However, NAD is bound differently than in canonical Rossmann fold proteins. Nitrate reductases, flavoproteins similar to pyridine nucleotide cytochrome reductases, catalyze the reduction of nitrate to nitrite. The enzyme can be divided into three functional fragments that bind the cofactors molybdopterin, heme-iron, and FAD/NADH.
Pssm-ID: 99780 [Multi-domain] Cd Length: 234 Bit Score: 46.02 E-value: 4.18e-05
cytochrome P450 Pc22g25500 and similar cytochrome P450s; Penicillium rubens Pc22g25500 is a ...
319-427
5.06e-05
cytochrome P450 Pc22g25500 and similar cytochrome P450s; Penicillium rubens Pc22g25500 is a putative cytochrome P450 of unknown function. Cytochrome P450 (P450, CYP) is a large superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop. Their monooxygenase activity relies on the reductive scission of molecular oxygen bound to the P450 heme iron, and the delivery of two electrons to the heme iron during the catalytic cycle.
Pssm-ID: 410719 Cd Length: 381 Bit Score: 47.02 E-value: 5.06e-05
unknown subfamily of actinobacterial cytochrome P450s; This subfamily is composed of ...
235-426
1.18e-04
unknown subfamily of actinobacterial cytochrome P450s; This subfamily is composed of uncharacterized cytochrome P450s. Cytochrome P450 (P450, CYP) is a large superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop. Their monooxygenase activity relies on the reductive scission of molecular oxygen bound to the P450 heme iron, and the delivery of two electrons to the heme iron during the catalytic cycle.
Pssm-ID: 410716 [Multi-domain] Cd Length: 367 Bit Score: 45.72 E-value: 1.18e-04
Anaerobic sulfite reductase contains an FAD and NADPH binding module with structural ...
846-1016
4.17e-04
Anaerobic sulfite reductase contains an FAD and NADPH binding module with structural similarity to ferredoxin reductase and sequence similarity to dihydroorotate dehydrogenases. Clostridium pasteurianum inducible dissimilatory type sulfite reductase is linked to ferredoxin and reduces NH2OH and SeO3 at a lesser rate than it's normal substate SO3(2-). Dihydroorotate dehydrogenases (DHODs) catalyze the only redox reaction in pyrimidine de novo biosynthesis. They catalyze the oxidation of (S)-dihydroorotate to orotate coupled with the reduction of NAD+.
Pssm-ID: 99817 [Multi-domain] Cd Length: 253 Bit Score: 43.36 E-value: 4.17e-04
Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding ...
904-1019
4.52e-04
Iron-sulfur binding ferredoxin reductase (FNR) proteins combine the FAD and NAD(P) binding regions of FNR with an N-terminal Iron-Sulfur binding cluster domain. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria in which they participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99791 [Multi-domain] Cd Length: 222 Bit Score: 43.03 E-value: 4.52e-04
Na+-translocating NADH:quinone oxidoreductase (Na+-NQR) FAD/NADH binding domain. (Na+-NQR) provides a means of storing redox reaction energy via the transmembrane translocation of Na2+ ions. The C-terminal domain resembles ferredoxin:NADP+ oxidoreductase, and has NADH and FAD binding sites. (Na+-NQR) is distinct from H+-translocating NADH:quinone oxidoreductases and noncoupled NADH:quinone oxidoreductases. The NAD(P) binding domain of ferredoxin reductase-like proteins catalyze electron transfer between an NAD(P)-binding domain of the alpha/beta class and a discrete (usually N-terminal) domain which vary in orientation with respect to the NAD(P) binding domain. The N-terminal domain of this group typically contains an iron-sulfur cluster binding domain.
Pssm-ID: 99785 [Multi-domain] Cd Length: 283 Bit Score: 43.45 E-value: 5.03e-04
Phenol 2-monooxygenase (phenol hydroxylase) is a flavoprotein monooxygenase, able to use ...
834-971
1.23e-03
Phenol 2-monooxygenase (phenol hydroxylase) is a flavoprotein monooxygenase, able to use molecular oxygen as a substrate in the microbial degredation of phenol. This protein is encoded by a single gene and uses a tightly bound FAD cofactor in the NAD(P)H dependent conversion of phenol and O2 to catechol and H2O. This group is related to the NAD binding ferredoxin reductases.
Pssm-ID: 99807 Cd Length: 238 Bit Score: 41.54 E-value: 1.23e-03
NAD(P) binding domain of ferredoxin reductase like phenylacetic acid (PA) degradation ...
842-1029
1.85e-03
NAD(P) binding domain of ferredoxin reductase like phenylacetic acid (PA) degradation oxidoreductase. PA oxidoreductases of E. coli hydroxylate PA-CoA in the second step of PA degradation. Members of this group typically fuse a ferredoxin reductase-like domain with an iron-sulfur binding cluster domain. Ferredoxins catalyze electron transfer between an NAD(P)-binding domain of the alpha/beta class and a discrete (usually N-terminal) domain which vary in orientation with respect to the NAD(P) binding domain. The N-terminal portion may contain a flavin prosthetic group, as in flavoenzymes, or use flavin as a substrate. Ferredoxin-NADP+ (oxido)reductase is an FAD-containing enzyme that catalyzes the reversible electron transfer between NADP(H) and electron carrier proteins such as ferredoxin and flavodoxin. Isoforms of these flavoproteins (i.e. having a non-covalently bound FAD as a prosthetic group) are present in chloroplasts, mitochondria, and bacteria and participate in a wide variety of redox metabolic pathways. The C-terminal domain contains most of the NADP(H) binding residues and the N-terminal domain interacts non-covalently with the isoalloxazine rings of the flavin molecule which lies largely in a large gap betweed the two domains. Ferredoxin-NADP+ reductase first accepts one electron from reduced ferredoxin to form a flavin semiquinone intermediate. The enzyme then accepts a second electron to form FADH2 which then transfers two electrons and a proton to NADP+ to form NADPH.
Pssm-ID: 99810 [Multi-domain] Cd Length: 241 Bit Score: 41.37 E-value: 1.85e-03
Phthalate dioxygenase reductase (PDR) is an FMN-dependent reductase that mediates electron ...
835-1016
3.29e-03
Phthalate dioxygenase reductase (PDR) is an FMN-dependent reductase that mediates electron transfer from NADH to FMN to an iron sulfur cluster. PDR has an an N-terminal ferrredoxin reductase (FNR)-like NAD(H) binding domain and a C-terminal iron-sulfur [2Fe-2S] cluster domain. Although structurally homologous to FNR, PDR binds FMN rather than FAD in it's FNR-like domain. Electron transfer between pyrimidines and iron-sulfur clusters (Rieske center [2Fe-2S]) or heme groups is mediated by flavins in respiration, photosynthesis, and oxygenase systems. Type I dioxygenase systems, including the hydroxylate phthalate system, have 2 components, a monomeric reductase consisting of a flavin and a 2Fe-2S center and a multimeric oxygenase. In contrast to other Rieske dioxygenases the ferredoxin like domain is C-, not N-terminal.
Pssm-ID: 99782 [Multi-domain] Cd Length: 211 Bit Score: 40.16 E-value: 3.29e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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