x1 = Ras2_GDP
x2 = Cdc25
x3 = Ras2_GDP_Cdc25
x4 = Ras2_Cdc25
x5 = GDP
x6 = GTP
x7 = Ras2_GTP_Cdc25
x8 = Ras2_GTP
x9 = Ira2
x10 = Ras2_GTP_Ira2
x11 = CYR1
x12 = Ras2_GTP_CYR1
x13 = ATP
x14 = cAMP
x15 = PKA
x16 = cAMP_PKA
x17 = IIcAMP_PKA
x18 = IIIcAMP_PKA
x19 = IVcAMP_PKA
x20 = C
x21 = R_2cAMP
x22 = R
x23 = R_C
x24 = Pde1
x25 = Pde1f
x26 = cAMP_Pde1f
x27 = AMP
x28 = PPA2
x29 = Pde2
x30 = cAMP_Pde2
x31 = Cdc25f
x32 = Ira2P
x33 = Ras2_GTP_Ira2P