MSMEG_0568 family radical SAM protein generates radicals by combining a 4Fe-4S cluster and S-adenosylmethionine (SAM) in close proximity; contains a conserved CxxxCxxC motif, which coordinates the conserved iron-sulfur cluster; transfer of a single electron from the iron-sulfur cluster to SAM leads to its reductive cleavage to methionine and a 5'-deoxyadenosyl radical
radical SAM protein, MSMEG_0568 family; Members of this protein family are radical SAM ...
8-359
0e+00
radical SAM protein, MSMEG_0568 family; Members of this protein family are radical SAM proteins related to MSMEG_0568 from Mycobacterium smegmatis. Members occur within 8-gene operons in species as diverse as M. smegmatis, Rhizobium leguminosarum, Synechococcus elongatus, and Sorangium cellulosum. The function of the operon is unknown, but similarity of MSMEG_0568 to some cofactor biosynthesis radical SAM proteins suggests a similar biosynthetic function. [Unknown function, Enzymes of unknown specificity]
:
Pssm-ID: 274940 Cd Length: 354 Bit Score: 639.03 E-value: 0e+00
radical SAM protein, MSMEG_0568 family; Members of this protein family are radical SAM ...
8-359
0e+00
radical SAM protein, MSMEG_0568 family; Members of this protein family are radical SAM proteins related to MSMEG_0568 from Mycobacterium smegmatis. Members occur within 8-gene operons in species as diverse as M. smegmatis, Rhizobium leguminosarum, Synechococcus elongatus, and Sorangium cellulosum. The function of the operon is unknown, but similarity of MSMEG_0568 to some cofactor biosynthesis radical SAM proteins suggests a similar biosynthetic function. [Unknown function, Enzymes of unknown specificity]
Pssm-ID: 274940 Cd Length: 354 Bit Score: 639.03 E-value: 0e+00
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual ...
129-286
6.54e-14
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual methylations, isomerization, sulphur insertion, ring formation, anaerobic oxidation and protein radical formation.
Pssm-ID: 427681 [Multi-domain] Cd Length: 159 Bit Score: 68.71 E-value: 6.54e-14
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ...
130-321
6.26e-12
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S cluster and S-adenosylmethionine (SAM) in close proximity. They are characterized by a conserved CxxxCxxC motif, which coordinates the conserved iron-sulfur cluster. Mechanistically, they share the transfer of a single electron from the iron-sulfur cluster to SAM, which leads to its reductive cleavage to methionine and a 5'-deoxyadenosyl radical, which, in turn, abstracts a hydrogen from the appropriately positioned carbon atom. Depending on the enzyme, SAM is consumed during this process or it is restored and reused. Radical SAM enzymes catalyze steps in metabolism, DNA repair, the biosynthesis of vitamins and coenzymes, and the biosynthesis of many antibiotics. Examples are biotin synthase (BioB), lipoyl synthase (LipA), pyruvate formate-lyase (PFL), coproporphyrinogen oxidase (HemN), lysine 2,3-aminomutase (LAM), anaerobic ribonucleotide reductase (ARR), and MoaA, an enzyme of the biosynthesis of molybdopterin.
Pssm-ID: 100105 [Multi-domain] Cd Length: 204 Bit Score: 64.28 E-value: 6.26e-12
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ...
130-316
4.48e-11
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, coproporphyrinogen III oxidase, biotin synthase and MiaB families, and includes a representative in the eukaryotic elongator subunit, Elp-3. Some members of the family are methyltransferases.
Pssm-ID: 214792 [Multi-domain] Cd Length: 216 Bit Score: 61.65 E-value: 4.48e-11
radical SAM protein, MSMEG_0568 family; Members of this protein family are radical SAM ...
8-359
0e+00
radical SAM protein, MSMEG_0568 family; Members of this protein family are radical SAM proteins related to MSMEG_0568 from Mycobacterium smegmatis. Members occur within 8-gene operons in species as diverse as M. smegmatis, Rhizobium leguminosarum, Synechococcus elongatus, and Sorangium cellulosum. The function of the operon is unknown, but similarity of MSMEG_0568 to some cofactor biosynthesis radical SAM proteins suggests a similar biosynthetic function. [Unknown function, Enzymes of unknown specificity]
Pssm-ID: 274940 Cd Length: 354 Bit Score: 639.03 E-value: 0e+00
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual ...
129-286
6.54e-14
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual methylations, isomerization, sulphur insertion, ring formation, anaerobic oxidation and protein radical formation.
Pssm-ID: 427681 [Multi-domain] Cd Length: 159 Bit Score: 68.71 E-value: 6.54e-14
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ...
130-321
6.26e-12
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S cluster and S-adenosylmethionine (SAM) in close proximity. They are characterized by a conserved CxxxCxxC motif, which coordinates the conserved iron-sulfur cluster. Mechanistically, they share the transfer of a single electron from the iron-sulfur cluster to SAM, which leads to its reductive cleavage to methionine and a 5'-deoxyadenosyl radical, which, in turn, abstracts a hydrogen from the appropriately positioned carbon atom. Depending on the enzyme, SAM is consumed during this process or it is restored and reused. Radical SAM enzymes catalyze steps in metabolism, DNA repair, the biosynthesis of vitamins and coenzymes, and the biosynthesis of many antibiotics. Examples are biotin synthase (BioB), lipoyl synthase (LipA), pyruvate formate-lyase (PFL), coproporphyrinogen oxidase (HemN), lysine 2,3-aminomutase (LAM), anaerobic ribonucleotide reductase (ARR), and MoaA, an enzyme of the biosynthesis of molybdopterin.
Pssm-ID: 100105 [Multi-domain] Cd Length: 204 Bit Score: 64.28 E-value: 6.26e-12
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ...
130-316
4.48e-11
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, coproporphyrinogen III oxidase, biotin synthase and MiaB families, and includes a representative in the eukaryotic elongator subunit, Elp-3. Some members of the family are methyltransferases.
Pssm-ID: 214792 [Multi-domain] Cd Length: 216 Bit Score: 61.65 E-value: 4.48e-11
2-iminoacetate synthase ThiH/Menaquinone biosynthesis enzymes MqnC and MqnE [Coenzyme ...
130-316
1.46e-07
2-iminoacetate synthase ThiH/Menaquinone biosynthesis enzymes MqnC and MqnE [Coenzyme transport and metabolism]; 2-iminoacetate synthase ThiH/Menaquinone biosynthesis enzymes MqnC and MqnE is part of the Pathway/BioSystem: Thiamine biosynthesis
Pssm-ID: 440680 [Multi-domain] Cd Length: 351 Bit Score: 52.44 E-value: 1.46e-07
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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