. "Also catalyzes elimination reactions of L-homoserine to form H(2)O, NH(3) and 2-oxobutanoate, of L-cystine, producing thiocysteine, pyruvate and NH(3), and of L-cysteine producing pyruvate, NH(3) and H(2)S." . . . "Gamma-cystathionase" . "Cystathionine gamma-lyase" . "Cystathionase" . "Cysteine desulfhydrase" . "Cystine desulfhydrase" . "Homoserine deaminase" . "Homoserine dehydratase" . "Cystathioninase" . . "L-cystathionine + H(2)O = L-cysteine + NH(3) + 2-oxobutanoate." . "Pyridoxal 5'-phosphate" .