Dual specificity mitogen-activated protein kinase kinase 2 is an enzyme that in humans is encoded by the MAP2K2 gene.^[5] It is more commonly known as MEK2, but has many alternative names including CFC4, MKK2, MAPKK2 and PRKMK2.^[6]

Quick Facts Available structures, PDB ...

MAP2K2
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1S9I, 4H3Q
Identifiers
Aliases	MAP2K2, CFC4, MAPKK2, MEK2, MKK2, PRKMK2, mitogen-activated protein kinase kinase 2
External IDs	OMIM: 601263 MGI: 1346867 HomoloGene: 48591 GeneCards: MAP2K2
Gene location (Human) Chr. Chromosome 19 (human)[1] Band 19p13.3 Start 4,090,321 bp[1] End 4,124,122 bp[1]
Gene location (Mouse) Chr. Chromosome 10 (mouse)[2] Band 10 C1|10 39.72 cM Start 80,941,749 bp[2] End 80,969,809 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in gastrocnemius muscle anterior pituitary prefrontal cortex stromal cell of endometrium amygdala right adrenal gland cingulate gyrus ganglionic eminence right lobe of thyroid gland body of pancreas Top expressed in lip yolk sac neural tube duodenum esophagus superior frontal gyrus epithelium of stomach jejunum ileum lacrimal gland More reference expression data BioGPS More reference expression data
Gene ontology Molecular function transferase activity nucleotide binding protein kinase activity PDZ domain binding scaffold protein binding protein serine/threonine kinase activator activity metal ion binding kinase activity protein binding protein serine/threonine/tyrosine kinase activity protein tyrosine kinase activity ATP binding MAP kinase kinase activity protein serine/threonine kinase activity Cellular component late endosome Golgi apparatus membrane focal adhesion cell-cell junction peroxisomal membrane extracellular region early endosome endoplasmic reticulum mitochondrion perinuclear region of cytoplasm cytoplasmic side of plasma membrane microtubule nucleus cytoplasm cytosol plasma membrane Biological process phosphorylation regulation of early endosome to late endosome transport peptidyl-serine autophosphorylation negative regulation of gene expression positive regulation of protein serine/threonine kinase activity protein phosphorylation peptidyl-tyrosine phosphorylation regulation of Golgi inheritance regulation of stress-activated MAPK cascade MAPK cascade ERK1 and ERK2 cascade positive regulation of production of miRNAs involved in gene silencing by miRNA positive regulation of transcription, DNA-templated positive regulation of ERK1 and ERK2 cascade regulation of mitotic cell cycle regulation of apoptotic process signal transduction stress-activated protein kinase signaling cascade activation of protein kinase activity Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 5605 26396 Ensembl ENSG00000126934 ENSMUSG00000035027 UniProt P36507 Q63932 RefSeq (mRNA) NM_030662 NM_023138 NM_001347144 NM_001358539 RefSeq (protein) NP_109587 NP_001334073 NP_075627 NP_001345468 Location (UCSC) Chr 19: 4.09 – 4.12 Mb Chr 10: 80.94 – 80.97 Mb PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Close

The protein encoded by this gene is a dual specificity protein kinase that belongs to the MAP kinase kinase family. This kinase is known to play a critical role in mitogen growth factor signal transduction. It phosphorylates and thus activates MAPK1/ERK2 and MAPK3/ERK1.

The activation of this kinase itself is dependent on the Ser/Thr phosphorylation by MAP kinase kinase kinases.

The inhibition or degradation of this kinase is found to be involved in the pathogenesis of Yersinia and anthrax.^[7]

MAP2K2 has been shown to interact with MAPK3^[8][9][10] and ARAF.^[11]