L-idonate + NADP(+) = 5-dehydro-D-gluconate + NADPH + H(+)
l-idonate + nadp(+) = 5-dehydro-d-gluconate + nadph + h(+)
L-idonate + NADP(+) = 5-dehydro-D-gluconate + NADPH + H(+)
l-idonate + nadp(+) = 5-dehydro-d-gluconate + nadph + h(+)