NADP + P6G -> NADPH + Ru5P Ru5P -> R5P R5P -> Ru5P Ru5P -> X5P X5P -> Ru5P G6L -> P6G GAP + S7P -> E4P + F6P E4P + F6P -> GAP + S7P E4P + X5P -> F6P + GAP F6P + GAP -> E4P + X5P R5P + X5P -> GAP + S7P GAP + S7P -> R5P + X5P G6P + NADP -> G6L + NADPH NADPH -> NADP E4P -> 0 R5P -> 0