ID 1.1.1.264 DE L-idonate 5-dehydrogenase [NAD(P)(+)]. AN L-idonate 5-dehydrogenase. CA (1) L-idonate + NAD(+) = 5-dehydro-D-gluconate + H(+) + NADH. CA (2) L-idonate + NADP(+) = 5-dehydro-D-gluconate + H(+) + NADPH. CC -!- The enzyme from the bacterium Escherichia coli is specific for CC 5-dehydro-D-gluconate. cf. EC 1.1.1.366. DR P39346, IDND_ECOLI ; //