lipoyl synthase catalyzes the radical-mediated insertion of two sulfur atoms into the C-6 and C-8 positions of the octanoyl moiety bound to the lipoyl domains of lipoate-dependent enzymes, thereby converting the octanoylated domains into lipoylated derivatives; belongs to the radical SAM superfamily
lipoate synthase; This enzyme is an iron-sulfur protein. It is localized to mitochondria in ...
85-387
1.76e-146
lipoate synthase; This enzyme is an iron-sulfur protein. It is localized to mitochondria in yeast and Arabidopsis. It generates lipoic acid, a thiol antioxidant that is linked to a specific Lys as prosthetic group for the pyruvate and alpha-ketoglutarate dehydrogenase complexes and the glycine-cleavage system. The family shows strong sequence conservation. [Biosynthesis of cofactors, prosthetic groups, and carriers, Lipoate]
Pssm-ID: 273111 Cd Length: 302 Bit Score: 417.32 E-value: 1.76e-146
N-terminal domain of lipoyl synthase of Radical_SAM family; LIAS_N is found as the N-terminal ...
53-131
5.10e-48
N-terminal domain of lipoyl synthase of Radical_SAM family; LIAS_N is found as the N-terminal domain of the Radical_SAM family in the members that are lipoyl synthase enzymes, particularly the mitochondrial ones in metazoa but also those in bacteria.
Pssm-ID: 465296 [Multi-domain] Cd Length: 97 Bit Score: 158.45 E-value: 5.10e-48
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ...
147-352
7.35e-18
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: 81.68 E-value: 7.35e-18
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ...
154-330
3.76e-07
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: 50.41 E-value: 3.76e-07
lipoate synthase; This enzyme is an iron-sulfur protein. It is localized to mitochondria in ...
85-387
1.76e-146
lipoate synthase; This enzyme is an iron-sulfur protein. It is localized to mitochondria in yeast and Arabidopsis. It generates lipoic acid, a thiol antioxidant that is linked to a specific Lys as prosthetic group for the pyruvate and alpha-ketoglutarate dehydrogenase complexes and the glycine-cleavage system. The family shows strong sequence conservation. [Biosynthesis of cofactors, prosthetic groups, and carriers, Lipoate]
Pssm-ID: 273111 Cd Length: 302 Bit Score: 417.32 E-value: 1.76e-146
N-terminal domain of lipoyl synthase of Radical_SAM family; LIAS_N is found as the N-terminal ...
53-131
5.10e-48
N-terminal domain of lipoyl synthase of Radical_SAM family; LIAS_N is found as the N-terminal domain of the Radical_SAM family in the members that are lipoyl synthase enzymes, particularly the mitochondrial ones in metazoa but also those in bacteria.
Pssm-ID: 465296 [Multi-domain] Cd Length: 97 Bit Score: 158.45 E-value: 5.10e-48
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual ...
153-312
5.73e-23
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: 94.13 E-value: 5.73e-23
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ...
147-352
7.35e-18
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: 81.68 E-value: 7.35e-18
Biotin synthase or related enzyme [Coenzyme transport and metabolism]; Biotin synthase or ...
157-322
5.61e-08
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: 53.90 E-value: 5.61e-08
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ...
154-330
3.76e-07
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: 50.41 E-value: 3.76e-07
2-iminoacetate synthase ThiH/Menaquinone biosynthesis enzymes MqnC and MqnE [Coenzyme ...
157-318
1.00e-03
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: 40.88 E-value: 1.00e-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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