D-cysteine desulfhydrase explained

D-cysteine desulfhydrase
Ec Number:	4.4.1.15
Cas Number:	84012-74-8
Go Code:	0019148

The enzyme D-cysteine desulfhydrase (EC 4.4.1.15) catalyzes the chemical reaction

D-cysteine + H₂O

\rightleftharpoons sulfide + NH₃ + 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 . 541 - 51 . 3908101 . 10.1111/j.1432-1033.1985.tb09335.x . 3 . free .
• 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 .