x1 = CycE
x2 = CycA
x3 = CycEp27
x4 = CycAp27
x5 = Skp2
x6 = Cdh1p
x7 = Emi1
x8 = p27
x9 = Cdh1
x10 = CycET
x11 = CycAT
x12 = p27T
x13 = Emi1Cdh1
x14 = Emi1Cdh1p
x15 = EmiC
x16 = Emi1T
x17 = Cdh1dp
x18 = Cdh1T