In enzymology, a cysteine-S-conjugate beta-lyase (EC 4.4.1.13) is an enzyme that catalyzes the chemical reaction
- RS-CH2-CH(NH3+)COO- RSH + NH3 + pyruvate
Hence, this enzyme has one substrate, ], but 3 products: RSH, NH3, and pyruvate.
This enzyme belongs to the family of lyases, specifically the class of carbon-sulfur lyases. The systematic name of this enzyme class is L-cysteine-S-conjugate thiol-lyase (deaminating; pyruvate-forming). Other names in common use include cysteine conjugate beta-lyase, glutamine transaminase K/cysteine conjugate beta-lyase, and L-cysteine-S-conjugate thiol-lyase (deaminating). It employs one cofactor, pyridoxal phosphate.
Read more about Cysteine-S-conjugate Beta-lyase: Structural Studies