x1 = RuBP x2 = PGA x3 = DPGA x4 = GAP x5 = DHAP x6 = FBP x7 = F6P x8 = E4P x9 = SBP x10 = S7P x11 = X5P x12 = R5P x13 = Ru5P x14 = G6P x15 = G1P x16 = ATP x17 = ADP x18 = NADPH x19 = NADP x20 = H x21 = Pi x22 = Pext