type 1 glutamine amidotransferase (GATase1)-like protein similar to the GATase1 domain found in cobyric acid synthase (CobQ) that catalyzes amidations at positions B, D, E, and G on adenosylcobyrinic A,C-diamide in the biosynthesis of cobalamin
Type 1 glutamine amidotransferase (GATase1) domain found in Cobyric Acid Synthase (CobQ); Type ...
15-202
1.87e-49
Type 1 glutamine amidotransferase (GATase1) domain found in Cobyric Acid Synthase (CobQ); Type 1 glutamine amidotransferase (GATase1) domain found in Cobyric Acid Synthase (CobQ). CobQ plays a role in cobalamin biosythesis. CobQ catalyses amidations at positions B, D, E, and G on adenosylcobyrinic A,C-diamide in the biosynthesis of cobalamin. CobQ belongs to the triad family of amidotransferases. Two of the three residues of the catalytic triad that are involved in glutamine binding, hydrolysis and transfer of the resulting ammonia to the acceptor substrate in other triad aminodotransferases are conserved in CobQ.
Pssm-ID: 153221 [Multi-domain] Cd Length: 194 Bit Score: 160.10 E-value: 1.87e-49
Type 1 glutamine amidotransferase (GATase1) domain found in Cobyric Acid Synthase (CobQ); Type ...
15-202
1.87e-49
Type 1 glutamine amidotransferase (GATase1) domain found in Cobyric Acid Synthase (CobQ); Type 1 glutamine amidotransferase (GATase1) domain found in Cobyric Acid Synthase (CobQ). CobQ plays a role in cobalamin biosythesis. CobQ catalyses amidations at positions B, D, E, and G on adenosylcobyrinic A,C-diamide in the biosynthesis of cobalamin. CobQ belongs to the triad family of amidotransferases. Two of the three residues of the catalytic triad that are involved in glutamine binding, hydrolysis and transfer of the resulting ammonia to the acceptor substrate in other triad aminodotransferases are conserved in CobQ.
Pssm-ID: 153221 [Multi-domain] Cd Length: 194 Bit Score: 160.10 E-value: 1.87e-49
Cobyrinic acid a,c-diamide synthase [Coenzyme transport and metabolism]; Cobyrinic acid a, ...
30-215
3.52e-08
Cobyrinic acid a,c-diamide synthase [Coenzyme transport and metabolism]; Cobyrinic acid a,c-diamide synthase is part of the Pathway/BioSystem: Cobalamine/B12 biosynthesis
Pssm-ID: 441402 [Multi-domain] Cd Length: 459 Bit Score: 53.19 E-value: 3.52e-08
Type 1 glutamine amidotransferase (GATase1)-like domain; Type 1 glutamine amidotransferase ...
13-102
3.31e-07
Type 1 glutamine amidotransferase (GATase1)-like domain; Type 1 glutamine amidotransferase (GATase1)-like domain. This group includes proteins similar to Class I glutamine amidotransferases, the intracellular PH1704 from Pyrococcus horikoshii, the C-terminal of the large catalase: Escherichia coli HP-II, Sinorhizobium meliloti Rm1021 ThuA. and, the A4 beta-galactosidase middle domain. The majority of proteins in this group have a reactive Cys found in the sharp turn between a beta strand and an alpha helix termed the nucleophile elbow. For Class I glutamine amidotransferases proteins which transfer ammonia from the amide side chain of glutamine to an acceptor substrate, this Cys forms a Cys-His-Glu catalytic triad in the active site. Glutamine amidotransferases activity can be found in a range of biosynthetic enzymes included in this cd: glutamine amidotransferase, formylglycinamide ribonucleotide, GMP synthetase, anthranilate synthase component II, glutamine-dependent carbamoyl phosphate synthase, cytidine triphosphate synthetase, gamma-glutamyl hydrolase, imidazole glycerol phosphate synthase and, cobyric acid synthase. For Pyrococcus horikoshii PH1704, the Cys of the nucleophile elbow together with a different His and, a Glu from an adjacent monomer form a catalytic triad different from the typical GATase1 triad. The E. coli HP-II C-terminal domain, S. meliloti Rm1021 ThuA and the A4 beta-galactosidase middle domain lack the catalytic triad typical GATaseI domains. GATase1-like domains can occur either as single polypeptides, as in Class I glutamine amidotransferases, or as domains in a much larger multifunctional synthase protein, such as CPSase.
Pssm-ID: 153210 [Multi-domain] Cd Length: 115 Bit Score: 47.59 E-value: 3.31e-07
Type 1 glutamine amidotransferase (GATase1)-like domain; Type 1 glutamine amidotransferase ...
13-102
8.36e-07
Type 1 glutamine amidotransferase (GATase1)-like domain; Type 1 glutamine amidotransferase (GATase1)-like domain. This group contains proteins similar to Class I glutamine amidotransferases, the intracellular PH1704 from Pyrococcus horikoshii, the C-terminal of the large catalase: Escherichia coli HP-II, Sinorhizobium meliloti Rm1021 ThuA, the A4 beta-galactosidase middle domain and peptidase E. The majority of proteins in this group have a reactive Cys found in the sharp turn between a beta strand and an alpha helix termed the nucleophile elbow. For Class I glutamine amidotransferases proteins which transfer ammonia from the amide side chain of glutamine to an acceptor substrate, this Cys forms a Cys-His-Glu catalytic triad in the active site. Glutamine amidotransferases activity can be found in a range of biosynthetic enzymes included in this cd: glutamine amidotransferase, formylglycinamide ribonucleotide, GMP synthetase, anthranilate synthase component II, glutamine-dependent carbamoyl phosphate synthase (CPSase), cytidine triphosphate synthetase, gamma-glutamyl hydrolase, imidazole glycerol phosphate synthase and, cobyric acid synthase. For Pyrococcus horikoshii PH1704, the Cys of the nucleophile elbow together with a different His and, a Glu from an adjacent monomer form a catalytic triad different from the typical GATase1 triad. Peptidase E is believed to be a serine peptidase having a Ser-His-Glu catalytic triad which differs from the Cys-His-Glu catalytic triad of typical GATase1 domains, by having a Ser in place of the reactive Cys at the nucleophile elbow. The E. coli HP-II C-terminal domain, S. meliloti Rm1021 ThuA and the A4 beta-galactosidase middle domain lack the catalytic triad typical GATaseI domains. GATase1-like domains can occur either as single polypeptides, as in Class I glutamine amidotransferases, or as domains in a much larger multifunctional synthase protein, such as CPSase. Peptidase E has a circular permutation in the common core of a typical GTAse1 domain.
Pssm-ID: 153222 [Multi-domain] Cd Length: 92 Bit Score: 45.65 E-value: 8.36e-07
Type 1 glutamine amidotransferase (GATase1) domain found in Cobyrinic Acid a,c-Diamide ...
56-195
4.88e-06
Type 1 glutamine amidotransferase (GATase1) domain found in Cobyrinic Acid a,c-Diamide Synthase; Type 1 glutamine amidotransferase (GATase1) domain found in Cobyrinic Acid a,c-Diamide Synthase. CobB plays a role in cobalamin biosythesis catalyzing the conversion of cobyrinic acid to cobyrinic acid a,c-diamide. CobB belongs to the triad family of amidotransferases. Two of the three residues of the catalytic triad that are involved in glutamine binding, hydrolysis and transfer of the resulting ammonia to the acceptor substrate in other triad aminodotransferases are conserved in CobB.
Pssm-ID: 153224 [Multi-domain] Cd Length: 198 Bit Score: 45.67 E-value: 4.88e-06
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.
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