biotin synthase BioB catalyzes the conversion of dethiobiotin (DTB) to biotin by the insertion of a sulfur atom into dethiobiotin via a radical-based mechanism
biotin synthase; Catalyzes the last step of the biotin biosynthesis pathway. All members of ...
5-272
2.93e-105
biotin synthase; Catalyzes the last step of the biotin biosynthesis pathway. All members of the seed alignment are in the immediate gene neighborhood of a bioA gene. [Biosynthesis of cofactors, prosthetic groups, and carriers, Biotin]
Pssm-ID: 273075 [Multi-domain] Cd Length: 296 Bit Score: 307.49 E-value: 2.93e-105
Biotin synthase or related enzyme [Coenzyme transport and metabolism]; Biotin synthase or ...
2-272
2.02e-94
Biotin synthase or related enzyme [Coenzyme transport and metabolism]; Biotin synthase or related enzyme is part of the Pathway/BioSystem: Biotin biosynthesis
Pssm-ID: 440268 [Multi-domain] Cd Length: 308 Bit Score: 280.40 E-value: 2.02e-94
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ...
6-209
7.11e-27
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: 104.02 E-value: 7.11e-27
Biotin and Thiamin Synthesis associated domain; Biotin synthase (BioB), EC:2.8.1.6, catalyzes the last step of the biotin biosynthetic pathway. The reaction consists in the introduction of a sulphur atom into dethiobiotin. BioB functions as a homodimer. Thiamin synthesis if a complex process involving at least six gene products (ThiFSGH, ThiI and ThiJ). Two of the proteins required for the biosynthesis of the thiazole moiety of thiamine (vitamin B(1)) are ThiG and ThiH (this family) and form a heterodimer. Both of these reactions are thought of involve the binding of co-factors, and both function as dimers. This domain therefore may be involved in co-factor binding or dimerization (Finn, RD personal observation).
Pssm-ID: 462054 [Multi-domain] Cd Length: 85 Bit Score: 75.95 E-value: 9.90e-18
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ...
13-190
6.10e-09
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: 54.65 E-value: 6.10e-09
biotin synthase; Catalyzes the last step of the biotin biosynthesis pathway. All members of ...
5-272
2.93e-105
biotin synthase; Catalyzes the last step of the biotin biosynthesis pathway. All members of the seed alignment are in the immediate gene neighborhood of a bioA gene. [Biosynthesis of cofactors, prosthetic groups, and carriers, Biotin]
Pssm-ID: 273075 [Multi-domain] Cd Length: 296 Bit Score: 307.49 E-value: 2.93e-105
Biotin synthase or related enzyme [Coenzyme transport and metabolism]; Biotin synthase or ...
2-272
2.02e-94
Biotin synthase or related enzyme [Coenzyme transport and metabolism]; Biotin synthase or related enzyme is part of the Pathway/BioSystem: Biotin biosynthesis
Pssm-ID: 440268 [Multi-domain] Cd Length: 308 Bit Score: 280.40 E-value: 2.02e-94
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ...
6-209
7.11e-27
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: 104.02 E-value: 7.11e-27
Biotin and Thiamin Synthesis associated domain; Biotin synthase (BioB), , catalyses the last ...
183-272
1.12e-24
Biotin and Thiamin Synthesis associated domain; Biotin synthase (BioB), , catalyses the last step of the biotin biosynthetic pathway. The reaction consists in the introduction of a sulphur atom into dethiobiotin. BioB functions as a homodimer. Thiamin synthesis if a complex process involving at least six gene products (ThiFSGH, ThiI and ThiJ). Two of the proteins required for the biosynthesis of the thiazole moiety of thiamine (vitamin B(1)) are ThiG and ThiH (this entry) and form a heterodimer. Both of these reactions are thought of involve the binding of co-factors, and both function as dimers.. This domain therefore may be involved in co-factor binding or dimerisation.
Pssm-ID: 214877 [Multi-domain] Cd Length: 94 Bit Score: 94.47 E-value: 1.12e-24
Biotin and Thiamin Synthesis associated domain; Biotin synthase (BioB), EC:2.8.1.6, catalyzes the last step of the biotin biosynthetic pathway. The reaction consists in the introduction of a sulphur atom into dethiobiotin. BioB functions as a homodimer. Thiamin synthesis if a complex process involving at least six gene products (ThiFSGH, ThiI and ThiJ). Two of the proteins required for the biosynthesis of the thiazole moiety of thiamine (vitamin B(1)) are ThiG and ThiH (this family) and form a heterodimer. Both of these reactions are thought of involve the binding of co-factors, and both function as dimers. This domain therefore may be involved in co-factor binding or dimerization (Finn, RD personal observation).
Pssm-ID: 462054 [Multi-domain] Cd Length: 85 Bit Score: 75.95 E-value: 9.90e-18
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual ...
16-167
1.02e-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: 69.86 E-value: 1.02e-14
2-iminoacetate synthase ThiH/Menaquinone biosynthesis enzymes MqnC and MqnE [Coenzyme ...
8-209
2.54e-11
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: 63.22 E-value: 2.54e-11
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ...
13-190
6.10e-09
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: 54.65 E-value: 6.10e-09
7,8-didemethyl-8-hydroxy-5-deazariboflavin synthase, CofH subunit; This enzyme, together with ...
10-178
1.18e-03
7,8-didemethyl-8-hydroxy-5-deazariboflavin synthase, CofH subunit; This enzyme, together with CofG, complete the biosynthesis of 7,8-didemethyl-8-hydroxy-5-deazariboflavin synthase, the chromophore of coenzyme F420. The chromophore is also used in cyanobacteria DNA photolyases. [Biosynthesis of cofactors, prosthetic groups, and carriers, Other]
Pssm-ID: 132590 [Multi-domain] Cd Length: 343 Bit Score: 39.95 E-value: 1.18e-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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