KEGG   ENZYME: 4.4.1.10Help
Entry
EC 4.4.1.10                 Enzyme                                 

Name cysteine lyase;
cysteine (sulfite) lyase;
L-cysteine hydrogen-sulfide-lyase (adding sulfite)
Class Lyases;
Carbon-sulfur lyases;
Carbon-sulfur lyases (only sub-subclass identified to date)
BRITE hierarchy
Sysname L-cysteine hydrogen-sulfide-lyase (adding sulfite;
L-cysteate-forming)
Reaction(IUBMB) L-cysteine + sulfite = L-cysteate + hydrogen sulfide [RN:R00901]
Reaction(KEGG) R00901
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Substrate L-cysteine [CPD:C00097];
sulfite [CPD:C00094]
Product L-cysteate [CPD:C00506];
hydrogen sulfide [CPD:C00283]
Cofactor Pyridoxal phosphate [CPD:C00018]
Comment A pyridoxal-phosphate protein. Can use a second molecule of cysteine
(producing lanthionine), or other alkyl thiols, as a replacing
agent.
Pathway PATH: ec00270  Cysteine and methionine metabolism
PATH: ec00430  Taurine and hypotaurine metabolism
PATH: ec01100  Metabolic pathways
Reference
  Authors
  Title

  Journal
  Organism
1  [PMID:5813025]
Tolosa EA, Chepurnova NK, Khomutov RM, Severin ES.
Reactions catalysed by cysteine lyase from the yolk sac of chicken
embryo.
Biochim. Biophys. Acta. 171 (1969) 369-71.
Gallus gallus [GN:gga]
Other DBs ExplorEnz - The Enzyme Database: 4.4.1.10
IUBMB Enzyme Nomenclature: 4.4.1.10
ExPASy - ENZYME nomenclature database: 4.4.1.10
BRENDA, the Enzyme Database: 4.4.1.10
CAS: 9079-86-1

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