S-alkylcysteine lyase
| S-alkylcysteine lyase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 4.4.1.6 | ||||||||
| CAS number | 62213-27-8 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
In enzymology, a S-alkylcysteine lyase (EC 4.4.1.6) is an enzyme that catalyzes the chemical reaction
- an S-alkyl-L-cysteine + water an alkyl thiol + ammonia + pyruvate
Thus, the two substrates of this enzyme are S-alkyl-L-cysteine and water, whereas its three products are alkyl thiol, ammonia, and pyruvate.
This enzyme belongs to the family of lyases, specifically the class of carbon-sulfur lyases. The systematic name of this enzyme class is S-alkyl-L-cysteine alkyl-thiol-lyase (deaminating; pyruvate-forming). Other names in common use include S-alkylcysteinase, alkylcysteine lyase, S-alkyl-L-cysteine sulfoxide lyase, S-alkyl-L-cysteine lyase, S-alkyl-L-cysteinase, alkyl cysteine lyase, and S-alkyl-L-cysteine alkylthiol-lyase (deaminating). It employs one cofactor, pyridoxal phosphate.
References
- Nomura J, Nishizuka Y, Hayaishi O (1963). "S-Alkylcysteinase: enzymatic cleavage of S-methyl-L-cysteine and its sulfoxide". J. Biol. Chem. 238: 1441&ndash, 1446.
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