Table 6: List of proteins used in inference of the reaction rates of Model 1.

Independent Ras.GDP, Ras.GTP, Raf, Raf.I, Raf., MEK, , MEK.p2 ERK, ERK.p2, ERK.p2-TF.p2, ERK.p2-RSK.A, Grb2, Shc, SOS, Grb2-SOS, Grb2-, c-Fos, c-Fos.RNA, MKP. Dependent Raf., Raf.I-Ras., , ERK.p2-RSK.A-TF.p2, , Shc-Grb2-, Shc-, c-Fos.p, c-Fos.DNA, MKP.DNA, MKP.RNA, EGFR, TF, GAP, PP2A, PAK, PP5, RSK.