NAD(P) transhydrogenase beta subunit; This family corresponds to the beta subunit of NADP ...
2-264
5.99e-136
NAD(P) transhydrogenase beta subunit; This family corresponds to the beta subunit of NADP transhydrogenase in prokaryotes, and either the protein N- or C terminal in eukaryotes. The domain is often found in conjunction with pfam01262. Pyridine nucleotide transhydrogenase catalyzes the reduction of NAD+ to NADPH. A complete loss of activity occurs upon mutation of Gly314 in E. coli.
The actual alignment was detected with superfamily member COG1282:
Pssm-ID: 473992 Cd Length: 458 Bit Score: 427.19 E-value: 5.99e-136
XPF family DNA repair endonuclease; (Xeroderma Pigmentosum group F) DNA repair gene homologs ...
1103-1233
6.34e-18
XPF family DNA repair endonuclease; (Xeroderma Pigmentosum group F) DNA repair gene homologs are members of the XPF/Rad1/Mus81-dependent nuclease family which specifically cleave branched structures generated during DNA repair, replication, and recombination, and they are essential for maintaining genome stability. They belong to a wider superfamily of nucleases including very short patch repair (Vsr) endonucleases, archaeal Holliday junction resolvases, MutH methyl-directed DNA mismatch-repair endonucleases, and catalytic domains of many restriction endonucleases, such as EcoRI, BamHI, and FokI.
:
Pssm-ID: 411771 [Multi-domain] Cd Length: 123 Bit Score: 81.15 E-value: 6.34e-18
Nucleotidyltransferase (NT) domain of DNA polymerase beta and similar proteins; This ...
1320-1459
9.79e-03
Nucleotidyltransferase (NT) domain of DNA polymerase beta and similar proteins; This superfamily includes the NT domains of DNA polymerase beta and other family X DNA polymerases, as well as the NT domains of Class I and Class II CCA-adding enzymes, RelA- and SpoT-like ppGpp synthetases and hydrolases, 2'5'-oligoadenylate (2-5A)synthetases, Escherichia coli adenylyltransferase (GlnE), Escherichia coli uridylyl transferase (GlnD), poly (A) polymerases, terminal uridylyl transferases, and Staphylococcus aureus kanamycin nucleotidyltransferase, and similar proteins. The Escherichia coli CCA-adding enzyme belongs to this superfamily but is not included as this enzyme lacks the N-terminal helix conserved in the remainder of the superfamily. In the majority of the Pol beta-like superfamily NTs, two carboxylates, Dx[D/E], together with a third more distal carboxylate coordinate two divalent metal cations that are essential for catalysis. These divalent metal ions are involved in a two-metal ion mechanism of nucleotide addition. Two of the three catalytic carboxylates are found in Rel-Spo enzymes, with the second carboxylate of the DXD motif missing. Evidence supports a single-cation synthetase mechanism for Rel-Spo enzymes.
The actual alignment was detected with superfamily member cd00141:
Pssm-ID: 472251 [Multi-domain] Cd Length: 307 Bit Score: 39.87 E-value: 9.79e-03
Rubrum transdehydrogenase NAD-binding and catalytic domains; Transhydrogenases found in ...
323-711
1.26e-143
Rubrum transdehydrogenase NAD-binding and catalytic domains; Transhydrogenases found in bacterial and inner mitochondrial membranes link NAD(P)(H)-dependent redox reactions to proton translocation. The energy of the proton electrochemical gradient (delta-p), generated by the respiratory electron transport chain, is consumed by transhydrogenase in NAD(P)+ reduction. Transhydrogenase is likely involved in the regulation of the citric acid cycle. Rubrum transhydrogenase has 3 components, dI, dII, and dIII. dII spans the membrane while dI and dIII protrude on the cytoplasmic/matrix side. DI contains 2 domains in Rossmann-like folds, linked by a long alpha helix, and contains a NAD binding site. Two dI polypeptides (represented in this sub-family) spontaneously form a heterotrimer with dIII in the absence of dII. In the heterotrimer, both dI chains may bind NAD, but only one is well-ordered. dIII also binds a well-ordered NADP, but in a different orientation than a classical Rossmann domain.
Pssm-ID: 240629 [Multi-domain] Cd Length: 363 Bit Score: 444.16 E-value: 1.26e-143
NAD(P) transhydrogenase beta subunit; This family corresponds to the beta subunit of NADP ...
2-263
3.52e-134
NAD(P) transhydrogenase beta subunit; This family corresponds to the beta subunit of NADP transhydrogenase in prokaryotes, and either the protein N- or C terminal in eukaryotes. The domain is often found in conjunction with pfam01262. Pyridine nucleotide transhydrogenase catalyzes the reduction of NAD+ to NADPH. A complete loss of activity occurs upon mutation of Gly314 in E. coli.
Pssm-ID: 460502 Cd Length: 454 Bit Score: 422.62 E-value: 3.52e-134
NAD(P) transhydrogenase, alpha subunit; This integral membrane protein is the alpha subunit of ...
323-867
3.67e-116
NAD(P) transhydrogenase, alpha subunit; This integral membrane protein is the alpha subunit of alpha 2 beta 2 tetramer that couples the proton transport across the membrane to the reversible transfer of hydride ion equivalents between NAD and NADP. An alternate name is pyridine nucleotide transhydrogenase alpha subunit. The N-terminal region is homologous to alanine dehydrogenase. In some species, such as Rhodospirillum rubrum, the alpha chain is replaced by two shorter chains, both with some homology to the full-length alpha chain modeled here. These score below the trusted cutoff. [Energy metabolism, Electron transport]
Pssm-ID: 273140 [Multi-domain] Cd Length: 512 Bit Score: 375.93 E-value: 3.67e-116
XPF family DNA repair endonuclease; (Xeroderma Pigmentosum group F) DNA repair gene homologs ...
1103-1233
6.34e-18
XPF family DNA repair endonuclease; (Xeroderma Pigmentosum group F) DNA repair gene homologs are members of the XPF/Rad1/Mus81-dependent nuclease family which specifically cleave branched structures generated during DNA repair, replication, and recombination, and they are essential for maintaining genome stability. They belong to a wider superfamily of nucleases including very short patch repair (Vsr) endonucleases, archaeal Holliday junction resolvases, MutH methyl-directed DNA mismatch-repair endonucleases, and catalytic domains of many restriction endonucleases, such as EcoRI, BamHI, and FokI.
Pssm-ID: 411771 [Multi-domain] Cd Length: 123 Bit Score: 81.15 E-value: 6.34e-18
ERCC4 domain; This domain is a family of nucleases. The family includes EME1 which is an ...
1105-1233
7.91e-10
ERCC4 domain; This domain is a family of nucleases. The family includes EME1 which is an essential component of a Holliday junction resolvase. EME1 interacts with MUS81 to form a DNA structure-specific endonuclease.
Pssm-ID: 426945 [Multi-domain] Cd Length: 139 Bit Score: 58.59 E-value: 7.91e-10
ERCC4 domain; This entry represents a structural motif found in several DNA repair nucleases, ...
1130-1194
2.90e-06
ERCC4 domain; This entry represents a structural motif found in several DNA repair nucleases, such as Rad1/Mus81/XPF endonucleases, and in ATP-dependent helicases. The XPF/Rad1/Mus81-dependent nuclease family specifically cleaves branched structures generated during DNA repair, replication, and recombination, and is essential for maintaining genome stability. The nuclease domain architecture exhibits remarkable similarity to those of restriction endonucleases.
Pssm-ID: 214888 [Multi-domain] Cd Length: 98 Bit Score: 47.34 E-value: 2.90e-06
Nucleotidyltransferase (NT) domain of family X DNA Polymerases; X family polymerases fill in ...
1320-1459
9.79e-03
Nucleotidyltransferase (NT) domain of family X DNA Polymerases; X family polymerases fill in short gaps during DNA repair. They are relatively inaccurate enzymes and play roles in base excision repair, in non-homologous end joining (NHEJ) which acts mainly to repair damage due to ionizing radiation, and in V(D)J recombination. This family includes eukaryotic Pol beta, Pol lambda, Pol mu, and terminal deoxyribonucleotidyl transferase (TdT). Pol beta and Pol lambda are primarily DNA template-dependent polymerases. TdT is a DNA template-independent polymerase. Pol mu has both template dependent and template independent activities. This subgroup belongs to the Pol beta-like NT superfamily. In the majority of enzymes in this superfamily, two carboxylates, Dx[D/E], together with a third more distal carboxylate, coordinate two divalent metal cations involved in a two-metal ion mechanism of nucleotide addition. These three carboxylate residues are fairly well conserved in this family.
Pssm-ID: 143386 [Multi-domain] Cd Length: 307 Bit Score: 39.87 E-value: 9.79e-03
Rubrum transdehydrogenase NAD-binding and catalytic domains; Transhydrogenases found in ...
323-711
1.26e-143
Rubrum transdehydrogenase NAD-binding and catalytic domains; Transhydrogenases found in bacterial and inner mitochondrial membranes link NAD(P)(H)-dependent redox reactions to proton translocation. The energy of the proton electrochemical gradient (delta-p), generated by the respiratory electron transport chain, is consumed by transhydrogenase in NAD(P)+ reduction. Transhydrogenase is likely involved in the regulation of the citric acid cycle. Rubrum transhydrogenase has 3 components, dI, dII, and dIII. dII spans the membrane while dI and dIII protrude on the cytoplasmic/matrix side. DI contains 2 domains in Rossmann-like folds, linked by a long alpha helix, and contains a NAD binding site. Two dI polypeptides (represented in this sub-family) spontaneously form a heterotrimer with dIII in the absence of dII. In the heterotrimer, both dI chains may bind NAD, but only one is well-ordered. dIII also binds a well-ordered NADP, but in a different orientation than a classical Rossmann domain.
Pssm-ID: 240629 [Multi-domain] Cd Length: 363 Bit Score: 444.16 E-value: 1.26e-143
NAD(P) transhydrogenase beta subunit; This family corresponds to the beta subunit of NADP ...
2-263
3.52e-134
NAD(P) transhydrogenase beta subunit; This family corresponds to the beta subunit of NADP transhydrogenase in prokaryotes, and either the protein N- or C terminal in eukaryotes. The domain is often found in conjunction with pfam01262. Pyridine nucleotide transhydrogenase catalyzes the reduction of NAD+ to NADPH. A complete loss of activity occurs upon mutation of Gly314 in E. coli.
Pssm-ID: 460502 Cd Length: 454 Bit Score: 422.62 E-value: 3.52e-134
NAD(P) transhydrogenase, alpha subunit; This integral membrane protein is the alpha subunit of ...
323-867
3.67e-116
NAD(P) transhydrogenase, alpha subunit; This integral membrane protein is the alpha subunit of alpha 2 beta 2 tetramer that couples the proton transport across the membrane to the reversible transfer of hydride ion equivalents between NAD and NADP. An alternate name is pyridine nucleotide transhydrogenase alpha subunit. The N-terminal region is homologous to alanine dehydrogenase. In some species, such as Rhodospirillum rubrum, the alpha chain is replaced by two shorter chains, both with some homology to the full-length alpha chain modeled here. These score below the trusted cutoff. [Energy metabolism, Electron transport]
Pssm-ID: 273140 [Multi-domain] Cd Length: 512 Bit Score: 375.93 E-value: 3.67e-116
Alanine dehydrogenase and related dehydrogenases; Alanine dehydrogenase/Transhydrogenase, such ...
322-682
7.38e-49
Alanine dehydrogenase and related dehydrogenases; Alanine dehydrogenase/Transhydrogenase, such as the hexameric L-alanine dehydrogenase of Phormidium lapideum, contain 2 Rossmann fold-like domains linked by an alpha helical region. Related proteins include Saccharopine Dehydrogenase (SDH), bifunctional lysine ketoglutarate reductase /saccharopine dehydrogenase enzyme, N(5)-(carboxyethyl)ornithine synthase, and Rubrum transdehydrogenase. Alanine dehydrogenase (L-AlaDH) catalyzes the NAD-dependent conversion of pyrucate to L-alanine via reductive amination. Transhydrogenases found in bacterial and inner mitochondrial membranes link NAD(P)(H)-dependent redox reactions to proton translocation. The energy of the proton electrochemical gradient (delta-p), generated by the respiratory electron transport chain, is consumed by transhydrogenase in NAD(P)+ reduction. Transhydrogenase is likely involved in the regulation of the citric acid cycle. Rubrum transhydrogenase has 3 components, dI, dII, and dIII. dII spans the membrane while dI and dIII protrude on the cytoplasmic/matirx side. DI contains 2 domains with Rossmann folds, linked by a long alpha helix, and contains a NAD binding site. Two dI polypeptides (represented in this sub-family) spontaneously form a heterotrimer with one dIII in the absence of dII. In the heterotrimer, both dI chains may bind NAD, but only one is well-ordered. dIII also binds a well-ordered NADP, but in a different orientation than classical Rossmann domains.
Pssm-ID: 240621 [Multi-domain] Cd Length: 317 Bit Score: 176.83 E-value: 7.38e-49
Alanine dehydrogenase NAD-binding and catalytic domains; Alanine dehydrogenase (L-AlaDH) ...
323-640
1.81e-35
Alanine dehydrogenase NAD-binding and catalytic domains; Alanine dehydrogenase (L-AlaDH) catalyzes the NAD-dependent conversion of pyruvate to L-alanine via reductive amination. Like formate dehydrogenase and related enzymes, L-AlaDH is comprised of 2 domains connected by a long alpha helical stretch, each resembling a Rossmann fold NAD-binding domain. The NAD-binding domain is inserted within the linear sequence of the more divergent catalytic domain. Ligand binding and active site residues are found in the cleft between the subdomains. L-AlaDH is typically hexameric and is critical in carbon and nitrogen metabolism in micro-organisms.
Pssm-ID: 240630 [Multi-domain] Cd Length: 359 Bit Score: 139.46 E-value: 1.81e-35
4TM region of pyridine nucleotide transhydrogenase, mitoch; PNTB_4TM is the region upstream of ...
788-867
3.49e-31
4TM region of pyridine nucleotide transhydrogenase, mitoch; PNTB_4TM is the region upstream of family PNTB, pfam02233, that carries four of this transporters transmembrane regions. PNTB is the beta-subunit of pyridine nucleotide transhydrogenase. This family forms part of the Proton-translocating Transhydrogenase (PTH) Family.
Pssm-ID: 463694 [Multi-domain] Cd Length: 84 Bit Score: 117.55 E-value: 3.49e-31
Alanine dehydrogenase (includes sporulation protein SpoVN) [Amino acid transport and ...
323-636
1.10e-28
Alanine dehydrogenase (includes sporulation protein SpoVN) [Amino acid transport and metabolism]; Alanine dehydrogenase (includes sporulation protein SpoVN) is part of the Pathway/BioSystem: Urea cycle
Pssm-ID: 440450 [Multi-domain] Cd Length: 372 Bit Score: 119.73 E-value: 1.10e-28
Formate/glycerate dehydrogenases, D-specific 2-hydroxy acid dehydrogenases and related ...
318-670
1.43e-26
Formate/glycerate dehydrogenases, D-specific 2-hydroxy acid dehydrogenases and related dehydrogenases; The formate/glycerate dehydrogenase like family contains a diverse group of enzymes such as formate dehydrogenase (FDH), glycerate dehydrogenase (GDH), D-lactate dehydrogenase, L-alanine dehydrogenase, and S-Adenosylhomocysteine hydrolase, that share a common 2-domain structure. Despite often low sequence identity, these proteins typically have a characteristic arrangement of 2 similar domains of the alpha/beta Rossmann fold NAD+ binding form. The NAD(P) binding domain is inserted within the linear sequence of the mostly N-terminal catalytic domain. Structurally, these domains are connected by extended alpha helices and create a cleft in which NAD(P) is bound, primarily to the C-terminal portion of the 2nd (internal) domain. While many members of this family are dimeric, alanine DH is hexameric and phosphoglycerate DH is tetrameric. 2-hydroxyacid dehydrogenases are enzymes that catalyze the conversion of a wide variety of D-2-hydroxy acids to their corresponding keto acids. The general mechanism is (R)-lactate + acceptor to pyruvate + reduced acceptor. Formate dehydrogenase (FDH) catalyzes the NAD+-dependent oxidation of formate ion to carbon dioxide with the concomitant reduction of NAD+ to NADH. FDHs of this family contain no metal ions or prosthetic groups. Catalysis occurs though direct transfer of a hydride ion to NAD+ without the stages of acid-base catalysis typically found in related dehydrogenases.
Pssm-ID: 240631 [Multi-domain] Cd Length: 310 Bit Score: 111.94 E-value: 1.43e-26
XPF family DNA repair endonuclease; (Xeroderma Pigmentosum group F) DNA repair gene homologs ...
1103-1233
6.34e-18
XPF family DNA repair endonuclease; (Xeroderma Pigmentosum group F) DNA repair gene homologs are members of the XPF/Rad1/Mus81-dependent nuclease family which specifically cleave branched structures generated during DNA repair, replication, and recombination, and they are essential for maintaining genome stability. They belong to a wider superfamily of nucleases including very short patch repair (Vsr) endonucleases, archaeal Holliday junction resolvases, MutH methyl-directed DNA mismatch-repair endonucleases, and catalytic domains of many restriction endonucleases, such as EcoRI, BamHI, and FokI.
Pssm-ID: 411771 [Multi-domain] Cd Length: 123 Bit Score: 81.15 E-value: 6.34e-18
nuclease domain of XPF found in archaea; XPF, also called DNA excision repair protein ERCC-4, ...
1102-1229
1.05e-12
nuclease domain of XPF found in archaea; XPF, also called DNA excision repair protein ERCC-4, or DNA repair protein complementing XP-F cells, or Xeroderma pigmentosum group F-complementing protein, is a 3'-flap repair endonuclease that cleaves 5' of ds/ssDNA interfaces in 3' flap structures, although it also cuts bubble, Y-DNA structures and mobile and immobile Holliday junctions. XPF cuts preferentially after pyrimidines, may continue to progressively cleave substrate upstream of the initial cleavage, at least in vitro. It may be involved in nucleotide excision repair. The nuclease domains of the catalytic subunits XPF have the GDX(n)ERKX(3)D motif which is required for metal-dependent endonuclease activity but not for DNA junction binding. XPF-ERRC1 and its yeast homolog Rad1-Rad10 play key roles in the excision of DNA lesions and are required for certain types of homologous recombination events and for the repair of DNA cross-links.
Pssm-ID: 410851 [Multi-domain] Cd Length: 127 Bit Score: 66.25 E-value: 1.05e-12
XPF-like nuclease domain of Mus81; Mus81 is a crossover junction endonuclease that interacts ...
1105-1233
4.99e-10
XPF-like nuclease domain of Mus81; Mus81 is a crossover junction endonuclease that interacts with Eme1 and Eme2 to form a DNA structure-specific endonuclease with substrate preference for branched DNA structures with a 5'-end at the branch nick. The typical substrates include 3'-flap structures, replication forks and nicked Holliday junctions. Mus81 may be required in mitosis for the processing of stalled or collapsed replication forks. Mus81 consists of the active nuclease domain with the GDX(n)ERKX(3)D motif which is required for metal-dependent endonuclease activity and two helix-hairpin-helix (HhH2) domains.
Pssm-ID: 410850 [Multi-domain] Cd Length: 150 Bit Score: 59.42 E-value: 4.99e-10
ERCC4 domain; This domain is a family of nucleases. The family includes EME1 which is an ...
1105-1233
7.91e-10
ERCC4 domain; This domain is a family of nucleases. The family includes EME1 which is an essential component of a Holliday junction resolvase. EME1 interacts with MUS81 to form a DNA structure-specific endonuclease.
Pssm-ID: 426945 [Multi-domain] Cd Length: 139 Bit Score: 58.59 E-value: 7.91e-10
6-hydroxycyclohex-1-ene-1-carboxyl-CoA dehydrogenase, N-benzyl-3-pyrrolidinol dehydrogenase, and other MDR family members; This group contains enzymes of the zinc-dependent alcohol dehydrogenase family, including members (aka MDR) identified as 6-hydroxycyclohex-1-ene-1-carboxyl-CoA dehydrogenase and N-benzyl-3-pyrrolidinol dehydrogenase. 6-hydroxycyclohex-1-ene-1-carboxyl-CoA dehydrogenase catalyzes the conversion of 6-Hydroxycyclohex-1-enecarbonyl-CoA and NAD+ to 6-Ketoxycyclohex-1-ene-1-carboxyl-CoA,NADH, and H+. This group displays the characteristic catalytic and structural zinc sites of the zinc-dependent alcohol dehydrogenases. NAD(P)(H)-dependent oxidoreductases are the major enzymes in the interconversion of alcohols and aldehydes, or ketones. Alcohol dehydrogenase in the liver converts ethanol and NAD+ to acetaldehyde and NADH, while in yeast and some other microorganisms ADH catalyzes the conversion acetaldehyde to ethanol in alcoholic fermentation. ADH is a member of the medium chain alcohol dehydrogenase family (MDR), which have a NAD(P)(H)-binding domain in a Rossmann fold of a beta-alpha form. The NAD(H)-binding region is comprised of 2 structurally similar halves, each of which contacts a mononucleotide. A GxGxxG motif after the first mononucleotide contact half allows the close contact of the coenzyme with the ADH backbone. The N-terminal catalytic domain has a distant homology to GroES. These proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria), and have 2 tightly bound zinc atoms per subunit, a catalytic zinc at the active site and a structural zinc in a lobe of the catalytic domain. NAD(H)-binding occurs in the cleft between the catalytic and coenzyme-binding domains at the active site, and coenzyme binding induces a conformational closing of this cleft. Coenzyme binding typically precedes and contributes to substrate binding. In human ADH catalysis, the zinc ion helps coordinate the alcohol, followed by deprotonation of a histidine, the ribose of NAD, a serine, then the alcohol, which allows the transfer of a hydride to NAD+, creating NADH and a zinc-bound aldehyde or ketone. In yeast and some bacteria, the active site zinc binds an aldehyde, polarizing it, and leading to the reverse reaction.
Pssm-ID: 176216 [Multi-domain] Cd Length: 338 Bit Score: 51.48 E-value: 2.25e-06
ERCC4 domain; This entry represents a structural motif found in several DNA repair nucleases, ...
1130-1194
2.90e-06
ERCC4 domain; This entry represents a structural motif found in several DNA repair nucleases, such as Rad1/Mus81/XPF endonucleases, and in ATP-dependent helicases. The XPF/Rad1/Mus81-dependent nuclease family specifically cleaves branched structures generated during DNA repair, replication, and recombination, and is essential for maintaining genome stability. The nuclease domain architecture exhibits remarkable similarity to those of restriction endonucleases.
Pssm-ID: 214888 [Multi-domain] Cd Length: 98 Bit Score: 47.34 E-value: 2.90e-06
Alcohol dehydrogenases of the MDR family; This group contains members identified as related to ...
481-552
1.23e-04
Alcohol dehydrogenases of the MDR family; This group contains members identified as related to zinc-dependent alcohol dehydrogenase and other members of the MDR family. The medium chain dehydrogenases/reductase (MDR)/zinc-dependent alcohol dehydrogenase-like family, which contains the zinc-dependent alcohol dehydrogenase (ADH-Zn) and related proteins, is a diverse group of proteins related to the first identified member, class I mammalian ADH. MDRs display a broad range of activities and are distinguished from the smaller short chain dehydrogenases (~ 250 amino acids vs. the ~ 350 amino acids of the MDR). The MDR proteins have 2 domains: a C-terminal NAD(P)-binding Rossmann fold domain of a beta-alpha form and an N-terminal catalytic domain with distant homology to GroES. The MDR group includes various activities, including the founding alcohol dehydrogenase (ADH), quinone reductase, sorbitol dehydrogenase, formaldehyde dehydrogenase, butanediol DH, ketose reductase, cinnamyl reductase, and numerous others. The zinc-dependent alcohol dehydrogenases (ADHs) catalyze the NAD(P)(H)-dependent interconversion of alcohols to aldehydes or ketones. Active site zinc has a catalytic role, while structural zinc aids in stability. ADH-like proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria), and generally have 2 tightly bound zinc atoms per subunit. The active site zinc is coordinated by a histidine, two cysteines, and a water molecule. The second zinc seems to play a structural role, affects subunit interactions, and is typically coordinated by 4 cysteines.
Pssm-ID: 176222 [Multi-domain] Cd Length: 337 Bit Score: 46.03 E-value: 1.23e-04
nuclease domain of XPF found in eukaryotes; XPF, also called DNA excision repair protein ...
1102-1221
1.42e-04
nuclease domain of XPF found in eukaryotes; XPF, also called DNA excision repair protein ERCC-4, or DNA repair protein complementing XP-F cells, or Xeroderma pigmentosum group F-complementing protein, is a DNA repair endonuclease that is a catalytic component of a structure-specific DNA repair endonuclease responsible for the 5-prime incision during DNA repair. It is involved in homologous recombination that assists in removing interstrand cross-link. The nuclease domains of the catalytic subunits XPF have the GDX(n)ERKX(3)D motif which is required for metal-dependent endonuclease activity but not for DNA junction binding. XPF-ERRC1 and its yeast homolog Rad1-Rad10 play key roles in the excision of DNA lesions and are required for certain types of homologous recombination events and for the repair of DNA cross-links.
Pssm-ID: 410854 [Multi-domain] Cd Length: 136 Bit Score: 43.24 E-value: 1.42e-04
Threonine dehydrogenase or related Zn-dependent dehydrogenase [Amino acid transport and ...
497-552
1.56e-04
Threonine dehydrogenase or related Zn-dependent dehydrogenase [Amino acid transport and metabolism, General function prediction only]; Threonine dehydrogenase or related Zn-dependent dehydrogenase is part of the Pathway/BioSystem: Non-phosphorylated Entner-Doudoroff pathway
Pssm-ID: 440683 [Multi-domain] Cd Length: 341 Bit Score: 45.90 E-value: 1.56e-04
Saccharopine Dehydrogenase NAD-binding and catalytic domains; Saccharopine Dehydrogenase (SDH) ...
322-371
2.54e-04
Saccharopine Dehydrogenase NAD-binding and catalytic domains; Saccharopine Dehydrogenase (SDH) catalyzes the final step in the reversible NAD-dependent oxidative deamination of saccharopine to alpha-ketoglutarate and lysine, in the alpha-aminoadipate pathway of L-lysine biosynthesis. SHD is structurally related to formate dehydrogenase and similar enzymes, having a 2-domain structure in which a Rossmann-fold NAD(P)-binding domain is inserted within the linear sequence of a catalytic domain of related structure.
Pssm-ID: 240664 [Multi-domain] Cd Length: 351 Bit Score: 44.92 E-value: 2.54e-04
Alcohol dehydrogenases of the MDR family; NAD(P)(H)-dependent oxidoreductases are the major ...
508-550
7.44e-04
Alcohol dehydrogenases of the MDR family; NAD(P)(H)-dependent oxidoreductases are the major enzymes in the interconversion of alcohols and aldehydes, or ketones. This group has the characteristic catalytic and structural zinc sites of the zinc-dependent alcohol dehydrogenases. Alcohol dehydrogenase in the liver converts ethanol and NAD+ to acetaldehyde and NADH, while in yeast and some other microorganisms ADH catalyzes the conversion acetaldehyde to ethanol in alcoholic fermentation. ADH is a member of the medium chain alcohol dehydrogenase family (MDR), which has a NAD(P)(H)-binding domain in a Rossmann fold of a beta-alpha form. The NAD(H)-binding region is comprised of 2 structurally similar halves, each of which contacts a mononucleotide. A GxGxxG motif after the first mononucleotide contact half allows the close contact of the coenzyme with the ADH backbone. The N-terminal catalytic domain has a distant homology to GroES. These proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria), and have 2 tightly bound zinc atoms per subunit, a catalytic zinc at the active site and a structural zinc in a lobe of the catalytic domain. NAD(H)-binding occurs in the cleft between the catalytic and coenzyme-binding domains at the active site, and coenzyme binding induces a conformational closing of this cleft. Coenzyme binding typically precedes and contributes to substrate binding. In human ADH catalysis, the zinc ion helps coordinate the alcohol, followed by deprotonation of a histidine, the ribose of NAD, a serine, then the alcohol, which allows the transfer of a hydride to NAD+, creating NADH and a zinc-bound aldehyde or ketone. In yeast and some bacteria, the active site zinc binds an aldehyde, polarizing it, and leading to the reverse reaction.
Pssm-ID: 176221 [Multi-domain] Cd Length: 345 Bit Score: 43.74 E-value: 7.44e-04
Medium chain reductase/dehydrogenase (MDR)/zinc-dependent alcohol dehydrogenase-like family; ...
497-552
1.92e-03
Medium chain reductase/dehydrogenase (MDR)/zinc-dependent alcohol dehydrogenase-like family; The medium chain reductase/dehydrogenases (MDR)/zinc-dependent alcohol dehydrogenase-like family, which contains the zinc-dependent alcohol dehydrogenase (ADH-Zn) and related proteins, is a diverse group of proteins related to the first identified member, class I mammalian ADH. MDRs display a broad range of activities and are distinguished from the smaller short chain dehydrogenases (~ 250 amino acids vs. the ~ 350 amino acids of the MDR). The MDR proteins have 2 domains: a C-terminal NAD(P) binding-Rossmann fold domain of a beta-alpha form and an N-terminal catalytic domain with distant homology to GroES. The MDR group contains a host of activities, including the founding alcohol dehydrogenase (ADH) , quinone reductase, sorbitol dehydrogenase, formaldehyde dehydrogenase, butanediol DH, ketose reductase, cinnamyl reductase, and numerous others. The zinc-dependent alcohol dehydrogenases (ADHs) catalyze the NAD(P)(H)-dependent interconversion of alcohols to aldehydes or ketones. ADH-like proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria), and generally have 2 tightly bound zinc atoms per subunit, a catalytic zinc at the active site and a structural zinc in a lobe of the catalytic domain. The active site zinc is coordinated by a histidine, two cysteines, and a water molecule. The second zinc seems to play a structural role, affects subunit interactions, and is typically coordinated by 4 cysteines. Other MDR members have only a catalytic zinc, and some contain no coordinated zinc.
Pssm-ID: 176178 [Multi-domain] Cd Length: 271 Bit Score: 41.92 E-value: 1.92e-03
L-threonine dehydrogenase (TDH)-like; MDR/AHD-like proteins, including a protein annotated as ...
485-552
1.99e-03
L-threonine dehydrogenase (TDH)-like; MDR/AHD-like proteins, including a protein annotated as a threonine dehydrogenase. L-threonine dehydrogenase (TDH) catalyzes the zinc-dependent formation of 2-amino-3-ketobutyrate from L-threonine via NAD(H)-dependent oxidation. The zinc-dependent alcohol dehydrogenases (ADHs) catalyze the NAD(P)(H)-dependent interconversion of alcohols to aldehydes or ketones. Zinc-dependent ADHs are medium chain dehydrogenase/reductase type proteins (MDRs) and have a NAD(P)(H)-binding domain in a Rossmann fold of an beta-alpha form. The N-terminal region typically has an all-beta catalytic domain. In addition to alcohol dehydrogenases, this group includes quinone reductase, sorbitol dehydrogenase, formaldehyde dehydrogenase, butanediol DH, ketose reductase, cinnamyl reductase, and numerous others. These proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria), and generally have 2 tightly bound zinc atoms per subunit. The active site zinc is coordinated by a histidine, two cysteines, and a water molecule. The second zinc seems to play a structural role, affects subunit interactions, and is typically coordinated by 4 cysteines.
Pssm-ID: 176201 [Multi-domain] Cd Length: 339 Bit Score: 42.31 E-value: 1.99e-03
Alcohol dehydrogenases of the MDR family; This group resembles the zinc-dependent alcohol ...
497-552
2.24e-03
Alcohol dehydrogenases of the MDR family; This group resembles the zinc-dependent alcohol dehydrogenase and has the catalytic and structural zinc-binding sites characteristic of this group. The medium chain dehydrogenases/reductase (MDR)/zinc-dependent alcohol dehydrogenase-like family, which contains the zinc-dependent alcohol dehydrogenase (ADH-Zn) and related proteins, is a diverse group of proteins related to the first identified member, class I mammalian ADH. MDRs display a broad range of activities and are distinguished from the smaller short chain dehydrogenases (~ 250 amino acids vs. the ~ 350 amino acids of the MDR). The MDR proteins have 2 domains: a C-terminal NAD(P) binding-Rossmann fold domain of a beta-alpha form and an N-terminal catalytic domain with distant homology to GroES. The MDR group contains a host of activities, including the founding alcohol dehydrogenase (ADH), quinone reductase, sorbitol dehydrogenase, formaldehyde dehydrogenase, butanediol DH, ketose reductase, cinnamyl reductase, and numerous others. The zinc-dependent alcohol dehydrogenases (ADHs) catalyze the NAD(P)(H)-dependent interconversion of alcohols to aldehydes or ketones. Active site zinc has a catalytic role, while structural zinc aids in stability. ADH-like proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria), and generally have 2 tightly bound zinc atoms per subunit. The active site zinc is coordinated by a histidine, two cysteines, and a water molecule. The second zinc seems to play a structural role, affects subunit interactions, and is typically coordinated by 4 cysteines. Other MDR members have only a catalytic zinc, and some contain no coordinated zinc.
Pssm-ID: 176226 [Multi-domain] Cd Length: 384 Bit Score: 42.12 E-value: 2.24e-03
Alcohol dehydrogenases of the MDR family; NAD(P)(H)-dependent oxidoreductases are the major ...
504-550
2.40e-03
Alcohol dehydrogenases of the MDR family; NAD(P)(H)-dependent oxidoreductases are the major enzymes in the interconversion of alcohols and aldehydes, or ketones. Alcohol dehydrogenase in the liver converts ethanol and NAD+ to acetaldehyde and NADH, while in yeast and some other microorganisms ADH catalyzes the conversion acetaldehyde to ethanol in alcoholic fermentation. ADH is a member of the medium chain alcohol dehydrogenase family (MDR), which have a NAD(P)(H)-binding domain in a Rossmann fold of a beta-alpha form. The NAD(H)-binding region is comprised of 2 structurally similar halves, each of which contacts a mononucleotide. A GxGxxG motif after the first mononucleotide contact half allows the close contact of the coenzyme with the ADH backbone. The N-terminal catalytic domain has a distant homology to GroES. These proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria), and have 2 tightly bound zinc atoms per subunit, a catalytic zinc at the active site and a structural zinc in a lobe of the catalytic domain. NAD(H)-binding occurs in the cleft between the catalytic and coenzyme-binding domains at the active site, and coenzyme binding induces a conformational closing of this cleft. Coenzyme binding typically precedes and contributes to substrate binding. In human ADH catalysis, the zinc ion helps coordinate the alcohol, followed by deprotonation of a histidine, the ribose of NAD, a serine, then the alcohol, which allows the transfer of a hydride to NAD+, creating NADH and a zinc-bound aldehyde or ketone. In yeast and some bacteria, the active site zinc binds an aldehyde, polarizing it, and leading to the reverse reaction.
Pssm-ID: 176224 [Multi-domain] Cd Length: 367 Bit Score: 41.97 E-value: 2.40e-03
Threonine dehydrogenase; L-threonine dehydrogenase (TDH) catalyzes the zinc-dependent ...
500-552
5.43e-03
Threonine dehydrogenase; L-threonine dehydrogenase (TDH) catalyzes the zinc-dependent formation of 2-amino-3-ketobutyrate from L-threonine via NAD(H)- dependent oxidation. THD is a member of the zinc-requiring, medium chain NAD(H)-dependent alcohol dehydrogenase family (MDR). MDRs have a NAD(P)(H)-binding domain in a Rossmann fold of a beta-alpha form. NAD(P)(H)-dependent oxidoreductases are the major enzymes in the interconversion of alcohols and aldehydes, or ketones. The N-terminal region typically has an all-beta catalytic domain. These proteins typically form dimers (typically higher plants, mammals) or tetramers (yeast, bacteria) and have 2 tightly bound zinc atoms per subunit. Sorbitol and aldose reductase are NAD(+) binding proteins of the polyol pathway, which interconverts glucose and fructose.
Pssm-ID: 176184 [Multi-domain] Cd Length: 341 Bit Score: 40.68 E-value: 5.43e-03
Nucleotidyltransferase (NT) domain of family X DNA Polymerases; X family polymerases fill in ...
1320-1459
9.79e-03
Nucleotidyltransferase (NT) domain of family X DNA Polymerases; X family polymerases fill in short gaps during DNA repair. They are relatively inaccurate enzymes and play roles in base excision repair, in non-homologous end joining (NHEJ) which acts mainly to repair damage due to ionizing radiation, and in V(D)J recombination. This family includes eukaryotic Pol beta, Pol lambda, Pol mu, and terminal deoxyribonucleotidyl transferase (TdT). Pol beta and Pol lambda are primarily DNA template-dependent polymerases. TdT is a DNA template-independent polymerase. Pol mu has both template dependent and template independent activities. This subgroup belongs to the Pol beta-like NT superfamily. In the majority of enzymes in this superfamily, two carboxylates, Dx[D/E], together with a third more distal carboxylate, coordinate two divalent metal cations involved in a two-metal ion mechanism of nucleotide addition. These three carboxylate residues are fairly well conserved in this family.
Pssm-ID: 143386 [Multi-domain] Cd Length: 307 Bit Score: 39.87 E-value: 9.79e-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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The thumbnail image, if present, provides an approximate view of the feature's location in 3 dimensions.
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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
The Show Concise/Full Display button at the top of the page can be used to select the desired level of detail: only top scoring hits
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if a domain or superfamily has been annotated with functional sites (conserved features),
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click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
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Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
for each region on the query sequence:
specific hits meet or exceed a domain-specific e-value threshold
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and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
non-specific hits
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the domain superfamily to which the specific and non-specific hits belong
multi-domain models that were computationally detected and are likely to contain multiple single domains
Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
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