Compound as reactive (2)
NAD(P)H + 2,5-didehydro-D-gluconate + H+ → NAD(P)+ + 2-keto-L-gulonate
2-keto-L-gulonate + NADP+ ← NADPH + 2,5-didehydro-D-gluconate + H+
Compound as product (1)
an oxidized electron donor + 2-keto-D-gluconate → 2,5-didehydro-D-gluconate + a reduced electron donor
Reversible reaction (2)
5-dehydro-D-gluconate + NADP+ ↔ NADPH + 2,5-didehydro-D-gluconate + H+
2-keto-D-gluconate + NADP+ ↔ NADPH + 2,5-didehydro-D-gluconate + H+