Dual Specificity Mitogen-Activated Protein Kinase Kinase 1

**Semantic type:** Amino Acid, Peptide, or Protein|Enzyme

**Definition:** Dual specificity mitogen-activated protein kinase kinase 1 (393 aa, ~43 kDa) is encoded by the human MAP2K1 gene. This protein plays a role in protein phosphorylation and the MAP kinase signal transduction pathway.

**Synonyms:** - EC 2.7.12.2 - ERK Activator Kinase 1 - MAP Kinase Kinase 1 - MAP2K1 - MAP2K1 Protein - MAPK/ERK Kinase 1 - MAPKK 1 - MEK 1 - MEK-1 - MKK1 - Mitogen-Activated Protein Kinase Kinase-1