Cystathionine β-lyase

Cystathionine β-lyase is a pyridoxal 5′-phosphate (PLP) -dependent enzyme that cleaves the Cβ-Sγ bond of cystathionine to convert L-cysteine into L-homocysteine. Cystathionine β-lyase is involved in the de novo synthesis of methionine in microorganisms and plants and plays an important role in bacterial virulence.