a dual-specificity protein kinase of the STE7 kinase family. Phosphorylated and activated by Raf and Mos kinases. Phosphorylates a Thr and a Tyr residue in a Thr-Glu-Tyr sequence located in the activation loop of ERK2 and ERK3. A component of MAP kinase signal transduction pathways involved in mitogen growth factor signal transduction. Note: This description may include information from UniProtKB.
Protein type: Protein kinase, STE; Kinase, protein; EC 18.104.22.168; Protein kinase, dual-specificity; STE group; STE7 family
Cellular Component: peroxisomal membrane; Golgi apparatus; microtubule; internal side of plasma membrane; focal adhesion; mitochondrion; endoplasmic reticulum; early endosome; extracellular region; intercellular junction; cell cortex; cytosol; perinuclear region of cytoplasm; late endosome; nucleus
Molecular Function: MAP kinase kinase activity; protein serine/threonine kinase activity; protein serine/threonine kinase activator activity; protein binding; protein-tyrosine kinase activity; protein serine/threonine/tyrosine kinase activity; protein complex scaffold; ATP binding; PDZ domain binding
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.