EGF + freeEGFReceptor -> boundEGFReceptor boundEGFReceptor -> EGF + freeEGFReceptor NGF + freeNGFReceptor -> boundNGFReceptor boundNGFReceptor -> NGF + freeNGFReceptor SosInactive -> SosActive SosActive -> SosInactive SosInactive -> SosActive SosActive -> SosInactive SosActive -> SosInactive SosInactive -> SosActive RasInactive -> RasActive RasActive -> RasInactive RasActive -> RasInactive RasInactive -> RasActive Raf1Inactive -> Raf1Active Raf1Active -> Raf1Inactive MekInactive -> MekActive MekActive -> MekInactive MekInactive -> MekActive MekActive -> MekInactive ErkInactive -> ErkActive ErkActive -> ErkInactive MekActive -> MekInactive MekInactive -> MekActive ErkActive -> ErkInactive ErkInactive -> ErkActive Raf1Active -> Raf1Inactive Raf1Inactive -> Raf1Active P90RskInactive -> P90RskActive P90RskActive -> P90RskInactive PI3KInactive -> PI3KActive PI3KActive -> PI3KInactive PI3KInactive -> PI3KActive PI3KActive -> PI3KInactive AktInactive -> AktActive AktActive -> AktInactive Raf1Active -> Raf1Inactive Raf1Inactive -> Raf1Active C3GInactive -> C3GActive C3GActive -> C3GInactive Rap1Inactive -> Rap1Active Rap1Active -> Rap1Inactive Rap1Active -> Rap1Inactive Rap1Inactive -> Rap1Active BRafInactive -> BRafActive BRafActive -> BRafInactive BRafActive -> BRafInactive BRafInactive -> BRafActive