x1 = X1_0 x2 = X1_1 x3 = X2_0 x4 = X2_1 x5 = X2_2 x6 = X4_0 x7 = X4_1 x8 = X5_0 x9 = X5_1 x10 = X8_0 x11 = X8_1 x12 = X8_2 x13 = X8_3 x14 = X9_0 x15 = X9_2 x16 = X10_0 x17 = X10_1 x18 = X10_2 x19 = X10_3 x20 = X11_0 x21 = X11_1 x22 = X11_2 x23 = X11_3 x24 = X12_0 x25 = X12_1 x26 = Akt_pT308_obs x27 = Akt_pS473_obs x28 = TSC1_TSC2_pT1462_obs x29 = PRAS40_pT246_obs x30 = PRAS40_pS183_obs x31 = fourEBP1_pT37_46_obs x32 = p70_S6K_pT389_obs x33 = p70_S6K_pT229_obs x34 = IRS1_pS636_639_obs