(S)-cystathionine ketimine + NADPH + 2 H(+) = (3R,5S)-2,3,5,6,7-pentahydro-1,4-thiazepine-3,5-dicarboxylate + NADP(+)
(s)-cystathionine ketimine + nadph + 2 h(+) = (3r,5s)-2,3,5,6,7-pentahydro-1,4-thiazepine-3,5-dicarboxylate + nadp(+)
(S)-cystathionine ketimine + NADPH + 2 H(+) = (3R,5S)-2,3,5,6,7-pentahydro-1,4-thiazepine-3,5-dicarboxylate + NADP(+)
(s)-cystathionine ketimine + nadph + 2 h(+) = (3r,5s)-2,3,5,6,7-pentahydro-1,4-thiazepine-3,5-dicarboxylate + nadp(+)