lipoyl synthase is a radical SAM protein that catalyzes the formation of the lipoyl cofactor by catalyzing the insertion of sulfur atoms into the 6 and 8 positions of protein-bound derivatives of octanoic acid
lipoate synthase; This enzyme is an iron-sulfur protein. It is localized to mitochondria in ...
6-295
6.67e-124
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: 356.84 E-value: 6.67e-124
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual ...
63-220
2.77e-20
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: 85.66 E-value: 2.77e-20
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ...
57-237
1.33e-15
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: 74.36 E-value: 1.33e-15
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ...
64-238
1.49e-08
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: 53.88 E-value: 1.49e-08
lipoate synthase; This enzyme is an iron-sulfur protein. It is localized to mitochondria in ...
6-295
6.67e-124
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: 356.84 E-value: 6.67e-124
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual ...
63-220
2.77e-20
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: 85.66 E-value: 2.77e-20
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ...
57-237
1.33e-15
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: 74.36 E-value: 1.33e-15
N-terminal domain of lipoyl synthase of Radical_SAM family; LIAS_N is found as the N-terminal ...
6-42
1.53e-10
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: 57.14 E-value: 1.53e-10
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ...
64-238
1.49e-08
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: 53.88 E-value: 1.49e-08
IMPDH: The catalytic domain of the inosine monophosphate dehydrogenase. IMPDH catalyzes the ...
93-163
6.22e-04
IMPDH: The catalytic domain of the inosine monophosphate dehydrogenase. IMPDH catalyzes the NAD-dependent oxidation of inosine 5'-monophosphate (IMP) to xanthosine 5' monophosphate (XMP). It is a rate-limiting step in the de novo synthesis of the guanine nucleotides. There is often a CBS domain inserted in the middle of this domain, which is proposed to play a regulatory role. IMPDH is a key enzyme in the regulation of cell proliferation and differentiation. It has been identified as an attractive target for developing chemotherapeutic agents.
Pssm-ID: 238223 [Multi-domain] Cd Length: 325 Bit Score: 40.96 E-value: 6.22e-04
Organic radical activating enzyme NrdG/QueE [Coenzyme transport and metabolism]; Organic ...
67-200
5.27e-03
Organic radical activating enzyme NrdG/QueE [Coenzyme transport and metabolism]; Organic radical activating enzyme NrdG/QueE is part of the Pathway/BioSystem: tRNA modification
Pssm-ID: 440367 [Multi-domain] Cd Length: 205 Bit Score: 37.42 E-value: 5.27e-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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Functional characterization of the conserved domain architecture found on the query.
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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.
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(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.
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(labeled illustration) Four types of hits can be shown, as available,
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