1G64
THE THREE-DIMENSIONAL STRUCTURE OF ATP:CORRINOID ADENOSYLTRANSFERASE FROM SALMONELLA TYPHIMURIUM. COBALAMIN/ATP TERNARY COMPLEX
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | d1g64a_ | Alpha and beta proteins (a/b) | P-loop containing nucleoside triphosphate hydrolases | P-loop containing nucleoside triphosphate hydrolases | RecA protein-like (ATPase-domain) | ATP:corrinoid adenosyltransferase CobA | (Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ], | SCOPe (2.08) |
B | d1g64b_ | Alpha and beta proteins (a/b) | P-loop containing nucleoside triphosphate hydrolases | P-loop containing nucleoside triphosphate hydrolases | RecA protein-like (ATPase-domain) | ATP:corrinoid adenosyltransferase CobA | (Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
A | SCOP2B Superfamily | RecA-like P-loop NTPases | 8018081 | 3002019 | SCOP2B (2022-06-29) |
B | SCOP2 Family | CobA-like | 8018080 | 4004001 | SCOP2 (2022-06-29) |
B | SCOP2 Family | CobA N-terminal region | 8018084 | 4004002 | SCOP2 (2022-06-29) |
B | SCOP2 Superfamily | RecA-like P-loop NTPases | 8018081 | 3002019 | SCOP2 (2022-06-29) |
B | SCOP2 Superfamily | CobA N-terminal region-like | 8019813 | 3002033 | SCOP2 (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | PF02572 | e1g64A1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: PF02572 | ECOD (1.6) |
B | PF02572 | e1g64B2 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: PF02572 | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 3.40.50.300 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | P-loop containing nucleotide triphosphate hydrolases | CATH (4.3.0) |
B | 3.40.50.300 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | P-loop containing nucleotide triphosphate hydrolases | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF02572 | ATP:corrinoid adenosyltransferase BtuR/CobO/CobP (CobA_CobO_BtuR) | ATP:corrinoid adenosyltransferase BtuR/CobO/CobP | This family consists of the BtuR, CobO, CobP proteins all of which are Cob(I)alamin adenosyltransferase, EC:2.5.1.17, involved in cobalamin (vitamin B12) biosynthesis. These enzymes catalyse the adenosylation reaction: ATP + cob(I)alamin + H2O <=> p ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR003724 | ATP:cob(I)alamin adenosyltransferase CobA/CobO/BtuR | Family | |
IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Homologous Superfamily |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
cob(I)yrinic acid a,c-diamide adenosyltransferase M-CSA #853 | The corrinoid adenosylation pathway comprises three steps: (i) reduction of Co(III) to Co(II) by a one-electron transfer. (ii) Co(II) is reduced to Co(I) in a second single-electron transfe, and (iii) the Co(I) conducts a nucleophilic attack on the adenosyl moiety of ATP to leave the cobalt atom in a Co(III) state. The enzyme responsible for the adenosylation reaction is the product of the gene cobO in the aerobic bacterium Pseudomonas denitrificans and of the gene cobA in the anaerobic bacterium Salmonella typhimurium. This entry represents the cobA gene product, which shows a preference for ATP and Mn(II), although it is able to transfer a variety of nucleosides to the cobalt, including CTP, UTP and GTP, in decreasing order of preference and to use Mg(ii) instead of Mn(II). | Defined by 9 residues: ASN:A-37LYS:A-39LYS:A-41THR:A-42THR:A-43PHE:A-91TRP:A-93GLU:A-128ARG:B-51 [auth B-251] | EC: 2.5.1.17 (PDB Primary Data) |