D-cysteine desulfhydrase
The enzyme D-cysteine desulfhydrase (EC 4.4.1.15) catalyzes the chemical reaction D-cysteine + H2O ⇌ {\displaystyle \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).