CATH Classification

Domain Context

CATH Clusters

Superfamily Cyanate lyase, C-terminal domain
Functional Family Cyanate hydratase

Enzyme Information

4.2.1.104
Cyanase.
based on mapping to UniProt A8GBZ7
Cyanate + HCO(3)(-) + 2 H(+) = NH(3) + 2 CO(2).
-!- This enzyme, which is found in bacteria and plants, is used to decompose cyanate, which can be used as the sole source of nitrogen. -!- The reaction can be considered as the reverse of 'carbamate = cyanate + H(2)O', where this is assisted by reaction with bicarbonate and carbon dioxide, and hence is classified in sub-subclass 4.2.1. -!- Bicarbonate functions as a recycling substrate. -!- Formerly EC 3.5.5.3 and EC 4.3.99.1.

UniProtKB Entries (1)

A8GBZ7
CYNS_SERP5
Serratia proteamaculans 568
Cyanate hydratase

PDB Structure

PDB 4Y42
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Serendipitous crystallization and structure determination of cyanase (CynS) from Serratia proteamaculans
Butryn, A., Stoehr, G., Linke-Winnebeck, C., Hopfner, K.-P.
Acta Crystallogr.,Sect.F