| EC |
4.4.1.10 |
| Accepted name: |
cysteine lyase |
| Reaction: |
L-cysteine + sulfite = L-cysteate + hydrogen sulfide |
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For diagram of taurine biosynthesis, click here |
| Other name(s): |
cysteine (sulfite) lyase; L-cysteine hydrogen-sulfide-lyase (adding sulfite) |
| Systematic name: |
L-cysteine hydrogen-sulfide-lyase (adding sulfite; L-cysteate-forming) |
| Comments: |
A pyridoxal-phosphate protein. Can use a second molecule of cysteine (producing lanthionine), or other alkyl thiols, as a replacing agent. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 9079-86-1 |
| References: |
| 1. |
Tolosa, E.A., Chepurnova, N.K., Khomutov, R.M. and Severin, E.S. Reactions catalysed by cysteine lyase from the yolk sac of chicken embryo. Biochim. Biophys. Acta 171 (1969) 369–371. [DOI] [PMID: 5813025] |
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| [EC 4.4.1.10 created 1972] |
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