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