protein amino acid phosphorylation, phosphorus metabolic process, phosphate metabolic process, cell cycle,intracellular signaling cascade, small GTPase mediated signal transduction, Ras protein signal transduction,phosphorylation,
Cytoplasm . Nucleus. Membrane, caveola . Cell junction, focal adhesion . Autophosphorylation at Thr-207 promotes nuclear localization (PubMed:19060905). PEA15-binding redirects the biological outcome of MAPK3 kinase-signaling by sequestering MAPK3 into the cytoplasm (By similarity). .