KEGG   ENZYME: 4.4.1.25Help
Entry
EC 4.4.1.25                 Enzyme                                 
Name
L-cysteate sulfo-lyase;
L-cysteate sulfo-lyase (deaminating);
CuyA
Class
Lyases;
Carbon-sulfur lyases;
Carbon-sulfur lyases (only sub-subclass identified to date)
BRITE hierarchy
Sysname
L-cysteate bisulfite-lyase (deaminating; pyruvate-forming)
Reaction(IUBMB)
L-cysteate + H2O = pyruvate + bisulfite + NH3 [RN:R07634]
Reaction(KEGG)
Substrate
L-cysteate [CPD:C00506];
H2O [CPD:C00001]
Product
pyruvate [CPD:C00022];
bisulfite [CPD:C11481];
NH3 [CPD:C00014]
Comment
A pyridoxal-phosphate protein. D-Cysteine can also act as a substrate, but more slowly. It is converted into pyruvate, sulfide and NH3. This inducible enzyme from the marine bacterium Silicibacter pomeroyi DSS-3 forms part of the cysteate-degradation pathway.
Pathway
Cysteine and methionine metabolism
Reference
1  [PMID:16302849]
  Authors
Denger K, Smits TH, Cook AM.
  Title
L-cysteate sulpho-lyase, a widespread pyridoxal 5'-phosphate-coupled desulphonative enzyme purified from Silicibacter pomeroyi DSS-3(T).
  Journal
Biochem. J. 394 (2006) 657-64.
  Organism
Silicibacter pomeroyi [GN:sil]
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
DBGET integrated database retrieval system