ID 2.5.1.65 DE O-phosphoserine sulfhydrylase. AN O-phosphoserine(thiol)-lyase. CA H(+) + hydrogen sulfide + O-phospho-L-serine = L-cysteine + phosphate. CC -!- The enzyme from Aeropyrum pernix acts on both O-phospho-L-serine and CC O(3)-acetyl-L-serine, in contrast with EC 2.5.1.47, which acts only CC on O(3)-acetyl-L-serine. DR Q79FV4, CYSK2_MYCTU; Q9YBL2, CYSO_AERPE ; //