CATH Classification

Domain Context

CATH Clusters

Superfamily Cytidine Deaminase, domain 2
Functional Family Cytidine deaminase

Enzyme Information

3.5.4.5
Cytidine deaminase.
based on mapping to UniProt P0ABF6
(1) Cytidine + H(2)O = uridine + NH(3). (2) 2'-deoxycytidine + H(2)O = 2'-deoxyuridine + NH(3).
-!- Catalyzes the deamination of cytidine and 2'-deoxycytidine with similar efficiencies. -!- The enzyme, which is widely distributed among organisms, is involved in salvage of both exogenous and endogenous cytidine and 2'-deoxycytidine for UMP synthesis. -!- Formerly EC 3.5.4.14.

UniProtKB Entries (1)

P0ABF6
CDD_ECOLI
Escherichia coli K-12
Cytidine deaminase

PDB Structure

PDB 1ALN
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Cytidine deaminase complexed to 3-deazacytidine: a "valence buffer" in zinc enzyme catalysis.
Xiang, S., Short, S.A., Wolfenden, R., Carter Jr., C.W.
Biochemistry