Cystathionine gamma-Lyase

**Definition:** 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.

**Tree numbers:** - D08.811.520.300.250

**Synonyms:** - gamma-Cystathionase - Homoserine Deaminase - Homoserine Dehydratase - Cysteine Desulfhydrase - Cystathionase - Cystine Desulfohydrolase - Cystine Desulfhydrase