ID 1.5.1.17 DE alanopine dehydrogenase. CA 2,2'-iminodipropanoate + H2O + NAD(+) = H(+) + L-alanine + NADH + CA pyruvate. 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). //