p27 -> Cdh1 Cdc20 -> Cdh1 CycB -| Cdh1 CycA -| Cdh1 p27 -> Rb CycD -| Rb CycB -| Rb CycE -| Rb CycA -| Rb CycB -> Cdc20 p27 -> p27 CycD -| p27 CycB -| p27 CycE -> p27 CycA -| p27 Cdc20 -> UbcH10 CycB -> UbcH10 Cdh1 -? UbcH10 UbcH10 -> UbcH10 CycA -> UbcH10 Rb -| CycE E2F -> CycE Cdc20 -| CycB Cdh1 -| CycB CycD -> CycD Rb -| CycA E2F -> CycA Cdc20 -| CycA Cdh1 -| CycA CycA -> CycA UbcH10 -> CycA Rb -| E2F p27 -> E2F CycB -| E2F CycA -| E2F $Cdc20: CycB $Cdh1: ((Cdc20 | (p27 & !CycB)) | !(((p27 | Cdc20) | CycB) | CycA)) $CycA: ((E2F & !((Cdc20 | Rb) | (Cdh1 & UbcH10))) | (CycA & !((Cdc20 | Rb) | (Cdh1 & UbcH10)))) $CycB: !(Cdh1 | Cdc20) $CycD: CycD $CycE: (E2F & !Rb) $E2F: ((p27 & !(Rb | CycB)) | !(((Rb | p27) | CycB) | CycA)) $Rb: ((p27 & !(CycD | CycB)) | !((((p27 | CycD) | CycB) | CycE) | CycA)) $UbcH10: (((((CycB & !Cdh1) | (UbcH10 & ((Cdh1 & ((Cdc20 | CycB) | CycA)) | !Cdh1))) | (Cdc20 & !Cdh1)) | (CycA & !Cdh1)) | !((((Cdc20 | CycB) | Cdh1) | UbcH10) | CycA)) $p27: ((p27 & !(((CycA & CycE) | CycB) | CycD)) | !((((p27 | CycD) | CycB) | CycE) | CycA))