x1 = NGFR
x2 = L_NGFR
x3 = pTrkA
x4 = pTrkA_endo
x5 = Shc_pTrkA
x6 = Shc_pTrkA_endo
x7 = pShc_pTrkA
x8 = pShc_pTrkA_endo
x9 = Grb2_SOS_pShc_pTrkA
x10 = Grb2_SOS_pShc_pTrkA_endo
x11 = FRS2_pTrkA
x12 = FRS2_pTrkA_endo
x13 = pFRS2_pTrkA
x14 = pFRS2_pTrkA_endo
x15 = Crk_C3G_pFRS2_pTrkA
x16 = Crk_C3G_pFRS2_pTrkA_endo
x17 = Shc
x18 = Grb2_SOS_pShc
x19 = FRS2
x20 = Crk_C3G
x21 = Dok
x22 = pDok
x23 = Grb2
x24 = SOS
x25 = Grb2_SOS
x26 = Ras_GTP
x27 = Ras_GDP
x28 = B_Raf_Ras_GTP
x29 = B_Raf
x30 = c_Raf
x31 = Rap1_GTP
x32 = ppMEKcyt_ERKcyt
x33 = ppMEKcyt
x34 = ppERKcyt
x35 = dppERKcyt
x36 = MEKcyt
x37 = ERKcyt
x38 = MEKcyt_ERKcyt
x39 = pMEKcyt
x40 = pMEKcyt_ERKcyt
x41 = ppMEKnuc_ERKnuc
x42 = ppMEKnuc
x43 = ppERKnuc
x44 = dppERKnuc
x45 = MEKnuc
x46 = ERKnuc
x47 = MEKnuc_ERKnuc
x48 = pMEKnuc
x49 = pMEKnuc_ERKnuc
x50 = c_Raf_Ras_GTP
x51 = B_Raf_Rap1_GTP
x52 = Rap1_GDP
x53 = Crk
x54 = C3G
x55 = pDok_RasGAP
x56 = RasGAP
x57 = Grb2_pSOS
x58 = pShc
x59 = pSOS
x60 = pFRS2
x61 = mwd4cc05d6_6e19_4e2e_b540_45954f2df4f0
x62 = mwf82ad06a_b8aa_40fa_a532_a1da44e3425f
x63 = mwe009ad7f_90fd_4186_8855_77780724ddb8
x64 = mw5afa8250_0cf0_40a2_a97a_f7cf20a9cfbd
x65 = mwb4295eb0_bd92_4221_b49d_bbbd48ca25bc
x66 = mwa4903466_fc58_4bfe_b3ec_76a90f9d20e2
x67 = mwe979ec8f_a55c_470c_a554_9fa8013eab74
x68 = mw4478fbeb_51b1_4764_92ad_a86d314ae0eb
x69 = mw29fa4e00_a430_4f11_b62e_1bcbc0a767a0
x70 = mwa81400ac_76f5_4446_8a4d_6446ab4b11c9
x71 = mw6782adfa_29ee_41a8_acbb_4c86c6c81596
x72 = mwe599c4c1_2d8e_446c_bf3f_4c97baced8a9
x73 = mw46e8693e_348e_4f1d_8c49_c13485fae7ba
x74 = mwe0b9d340_24f5_4c7e_a80f_4faadae6c0fc
x75 = mw89ebbe2d_1ec2_457a_9367_6c5e86a1a924
x76 = mw555a08dc_922d_4b35_8f69_5c6e8a4ad614