a dual-specificity protein kinase of the STE7 kinase family. Phosphorylated and activated by Raf, Mos and Cot kinases. Phosphorylates a Thr and a Tyr residue in a Thr-Glu-Tyr sequence located in the activation loop of ERK1 and ERK2. An essential component of MAP kinase signal transduction pathways involved in many cellular processes such as proliferation, differentiation, transcription regulation and development. Note: This description may include information from UniProtKB.
Protein type: EC 188.8.131.52; Kinase, protein; Protein kinase, STE; Protein kinase, dual-specificity (non-receptor); STE group; STE7 family
Cellular Component: cytoplasm; cytosol; early endosome; endoplasmic reticulum; focal adhesion; Golgi apparatus; late endosome; mitochondrion; nucleus; plasma membrane
Molecular Function: MAP kinase kinase activity; protein binding; protein C-terminus binding; protein kinase activity; protein N-terminus binding; protein serine/threonine kinase activator activity; protein serine/threonine kinase activity; protein serine/threonine/tyrosine kinase activity; receptor signaling protein serine/threonine kinase activity
Biological Process: activation of MAPK activity; cell cycle arrest; cell motility; chemotaxis; MAPKKK cascade; negative regulation of cell proliferation; positive regulation of transcription, DNA-dependent; regulation of stress-activated MAPK cascade; signal transduction