label: (S)-cystathionine ketimine + NADH + 2 H(+) => (3R,5S)-2,3,5,6,7-pentahydro-1,4-thiazepine-3,5-dicarboxylate + NAD(+)
label_lc: (s)-cystathionine ketimine + nadh + 2 h(+) => (3r,5s)-2,3,5,6,7-pentahydro-1,4-thiazepine-3,5-dicarboxylate + nad(+)