2-dehydro-L-idonate + NADP(+) = 2,5-didehydro-D-gluconate + NADPH + H(+)
2-dehydro-l-idonate + nadp(+) = 2,5-didehydro-d-gluconate + nadph + h(+)
"2,5-didehydrogluconate reductase (2-dehydro-L-gulonate-forming)"
"2,5-didehydrogluconate reductase (2-dehydro-l-gulonate-forming)"