1XS1
dCTP deaminase from Escherichia coli in complex with dUTP
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
A | SCOP2 Family | dUTPase-like | 8031769 | 4002970 | SCOP2 (2022-06-29) |
A | SCOP2 Superfamily | dUTPase-like | 8044147 | 3001957 | SCOP2 (2022-06-29) |
B | SCOP2B Superfamily | dUTPase-like | 8044147 | 3001957 | SCOP2B (2022-06-29) |
C | SCOP2B Superfamily | dUTPase-like | 8044147 | 3001957 | SCOP2B (2022-06-29) |
D | SCOP2B Superfamily | dUTPase-like | 8044147 | 3001957 | SCOP2B (2022-06-29) |
F | SCOP2B Superfamily | dUTPase-like | 8044147 | 3001957 | SCOP2B (2022-06-29) |
E | SCOP2B Superfamily | dUTPase-like | 8044147 | 3001957 | SCOP2B (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 | DCD | e1xs1A1 | A: beta barrels | X: beta-clip | H: dUTPase-like (From Topology) | T: dUTPase-like | F: DCD | ECOD (1.6) |
B | DCD | e1xs1B1 | A: beta barrels | X: beta-clip | H: dUTPase-like (From Topology) | T: dUTPase-like | F: DCD | ECOD (1.6) |
C | DCD | e1xs1C1 | A: beta barrels | X: beta-clip | H: dUTPase-like (From Topology) | T: dUTPase-like | F: DCD | ECOD (1.6) |
D | DCD | e1xs1D1 | A: beta barrels | X: beta-clip | H: dUTPase-like (From Topology) | T: dUTPase-like | F: DCD | ECOD (1.6) |
F | DCD | e1xs1F1 | A: beta barrels | X: beta-clip | H: dUTPase-like (From Topology) | T: dUTPase-like | F: DCD | ECOD (1.6) |
E | DCD | e1xs1E1 | A: beta barrels | X: beta-clip | H: dUTPase-like (From Topology) | T: dUTPase-like | F: DCD | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 2.70.40.10 | Mainly Beta | Distorted Sandwich | Deoxyuridine 5'-Triphosphate Nucleotidohydrolase | Chain A | CATH (4.3.0) |
B | 2.70.40.10 | Mainly Beta | Distorted Sandwich | Deoxyuridine 5'-Triphosphate Nucleotidohydrolase | Chain A | CATH (4.3.0) |
C | 2.70.40.10 | Mainly Beta | Distorted Sandwich | Deoxyuridine 5'-Triphosphate Nucleotidohydrolase | Chain A | CATH (4.3.0) |
D | 2.70.40.10 | Mainly Beta | Distorted Sandwich | Deoxyuridine 5'-Triphosphate Nucleotidohydrolase | Chain A | CATH (4.3.0) |
F | 2.70.40.10 | Mainly Beta | Distorted Sandwich | Deoxyuridine 5'-Triphosphate Nucleotidohydrolase | Chain A | CATH (4.3.0) |
E | 2.70.40.10 | Mainly Beta | Distorted Sandwich | Deoxyuridine 5'-Triphosphate Nucleotidohydrolase | Chain A | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF22769 | dCTP deaminase-like (DCD) | dCTP deaminase-like | This entry represents a dCTP deaminase (DCD) domain found in archaea and bacteria [1-5]. Methanococcus jannaschii, has a bifunctional enzyme DCD-DUT, that harbors both dCTP deaminase and dUTP pyrophosphatase activities [1]. | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
dCTP deaminase M-CSA #732 | Deoxycytidine triphosphate deaminase (dCTP deaminase) from E. coli catalyses the deamination of dCTP producing ammonia and dUTP. The dUTP can be hydrolysed by dUTPase producing dUMP which is a precursor of dTTP. dCTP deaminase is inhibited by dTTP and by inorganic phosphate. Deamination of dCTP by dCTP deaminase provides about 80% of the dUMP used for dTMP synthesis in E. coli. The substrate of dCTP deaminase is the dCTP.Mg2+ complex but the magnesium does not have a catalytic role and no other metal ions are involved in catalysis. | Defined by 5 residues: ALA:A-124ARG:A-126GLU:A-138SER:C-111ARG:C-115 | EC: 3.5.4.13 (PDB Primary Data) |