Cystathionine gamma-lyase

UniProtKB accession:  P31373

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UniProtKB description:  Catalyzes the production of cysteine from cystathionine in the reverse transsulfuration pathway for the biosynthesis of sulfur-containing amino acids cysteine and methionine. In this pathway, homocysteine sulfur is converted to cysteine sulfur (Probable). Also has cystathionine beta-lyase and cystathionine gamma-synthase activities in vitro. Cystathionine beta-lyase may be physiological, while cystathionine gamma-synthase activity is not, as the required substrate O-succinyl-L-homoserine(OSH) does not occur naturally in S.cerevisiae (PubMed:8335636).