TARGETID

T35940

FORMERID

TTDR00148

UNIPROID

MP2K1_HUMAN

TARGNAME

ERK activator kinase 1 (MEK1)

GENENAME

MAP2K1

TARGTYPE

Clinical trial target

SYNONYMS

PRKMK1; Mitogen-activated protein kinase kinase 1; MKK1; MEK 1; MAPKK 1; MAPK/ERKkinase 1; MAPK/ERK kinase 1; MAP kinase kinase 1; Dual specificity mitogen-activated protein kinase kinase 1

FUNCTION

Binding of extracellular ligands such as growth factors, cytokines and hormones to their cell-surface receptors activates RAS and this initiates RAF1 activation. RAF1 then further activates the dual-specificity protein kinases MAP2K1/MEK1 and MAP2K2/MEK2. Both MAP2K1/MEK1 and MAP2K2/MEK2 function specifically in the MAPK/ERK cascade, and catalyze the concomitant phosphorylation of a threonine and a tyrosine residue in a Thr-Glu-Tyr sequence located in the extracellular signal-regulated kinases MAPK3/ERK1 and MAPK1/ERK2, leading to their activation and further transduction of the signal within the MAPK/ERK cascade. Depending on the cellular context, this pathway mediates diverse biological functions such as cell growth, adhesion, survival and differentiation, predominantly through the regulation of transcription, metabolism and cytoskeletal rearrangements. One target of the MAPK/ERK cascade is peroxisome proliferator-activated receptor gamma (PPARG), a nuclear receptor that promotes differentiation and apoptosis. MAP2K1/MEK1 has been shown to export PPARG from the nucleus. The MAPK/ERK cascade is also involved in the regulation of endosomal dynamics, including lysosome processing and endosome cycling through the perinuclear recycling compartment (PNRC), as well as in the fragmentation of the Golgi apparatus during mitosis. Dual specificity protein kinase which acts as an essential component of the MAP kinase signal transduction pathway.

PDBSTRUC

5YT3; 5HZE; 5EYM; 5BX0; 4U81

BIOCLASS

Kinase

ECNUMBER

EC 2.7.12.2

SEQUENCE

MPKKKPTPIQLNPAPDGSAVNGTSSAETNLEALQKKLEELELDEQQRKRLEAFLTQKQKVGELKDDDFEKISELGAGNGGVVFKVSHKPSGLVMARKLIHLEIKPAIRNQIIRELQVLHECNSPYIVGFYGAFYSDGEISICMEHMDGGSLDQVLKKAGRIPEQILGKVSIAVIKGLTYLREKHKIMHRDVKPSNILVNSRGEIKLCDFGVSGQLIDSMANSFVGTRSYMSPERLQGTHYSVQSDIWSMGLSLVEMAVGRYPIPPPDAKELELMFGCQVEGDAAETPPRPRTPGRPLSSYGMDSRPPMAIFELLDYIVNEPPPKLPSGVFSLEFQDFVNKCLIKNPAERADLKQLMVHAFIKRSDAEEVDFAGWLCSTIGLNQPSTPTHAAGV

DRUGINFO

Selumetinib

DRUGINFO

Diamidothiazole derivative 1

DRUGINFO

Pyridic ketone derivative 1

DRUGINFO

RDEA-436

DRUGINFO

4,5,6,7-tetrabromo-1H-benzo[d][1,2,3]triazole

DRUGINFO

4,5-Dibromo-1H-pyrrole-2-carboxylic acid amide

DRUGINFO

5-phenylamino-4-cyano-3-hydroxy-isothiazole

DRUGINFO

ALDISIN