D-cysteine desulfhydrase
In enzymology, a D-cysteine desulfhydrase (EC 4.4.1.15) is an enzyme that catalyzes the chemical reaction
- D-cysteine + H2O sulfide + NH3 + pyruvate
| D-cysteine desulfhydrase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 4.4.1.15 | ||||||||
| CAS number | 84012-74-8 | ||||||||
| 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 | ||||||||
| |||||||||
Thus, the two substrates of this enzyme are D-cysteine and H2O, whereas its 3 products are sulfide, NH3, 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 D-cysteine sulfide-lyase (deaminating; pyruvate-forming). Other names in common use include D-cysteine lyase, and D-cysteine sulfide-lyase (deaminating). This enzyme participates in cysteine metabolism.
References
- Nagasawa T, Ishii T, Kumagai H, Yamada H (1985). "D-Cysteine desulfhydrase of Escherichia coli. Purification and characterization". Eur. J. Biochem. 153 (3): 541–51. doi:10.1111/j.1432-1033.1985.tb09335.x. PMID 3908101.
- Schmidt A (1982). "A cysteine desulfhydrase from spinach leaves specific for D-cysteine". Z. Pflanzenphysiol. 107: 301–312.
- Schmidt A; Erdle I (1983). "A cysteine desulfhydrase specific for D-cysteine from the green-alga Chlorella fusca". Z. Naturforsch. C: Biosci. 38: 428–435.
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