A multifunctional pyridoxal phosphate enzyme. In the final step in the biosynthesis of cysteine it catalyzes the cleavage of cystathionine to yield cysteine, ammonia, and 2-ketobutyrate. EC 4.4.1.1.
Also Known As:
Cysteine Desulfhydrase; Cystine Desulfohydrolase; Cystathionine gamma Lyase; Deaminase, Homoserine; Dehydratase, Homoserine; Desulfhydrase, Cysteine; Desulfhydrase, Cystine; Desulfohydrolase, Cystine; gamma Cystathionase; gamma-Lyase, Cystathionine; Cystathionase; Cystine Desulfhydrase; Homoserine Deaminase; Homoserine Dehydratase; gamma-Cystathionase; L-Cystathionine cysteine-lyase (deaminating)