ID 1.5.1.17 DE Alanopine dehydrogenase. CA 2,2'-iminodipropanoate + NAD(+) + H(2)O = L-alanine + pyruvate + NADH. CC -!- In the reverse reaction, L-alanine can be replaced by L-cysteine, CC L-serine, or L-threonine; glycine acts very slowly (cf. EC 1.5.1.22). //