Mitogen-Activated Protein Kinase 3

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

**Definition:** Mitogen-activated protein kinase 3 (379 aa, ~43 kDa) is encoded by the human MAPK3 gene. This protein plays a role in transcriptional regulation, serine/threonine phosphorylation and both cytokine-dependent and stress-activated signaling.

**Synonyms:** - EC 2.7.11.24 - ERK-1 - ERT2 - Extracellular Signal-Regulated Kinase 1 - Insulin-Stimulated MAP2 Kinase - MAP Kinase 3 - MAP Kinase Isoform p44 - MAPK 3 - MAPK3 - Microtubule-Associated Protein 2 Kinase - p44 - p44 (MAPK) - p44-ERK1 - p44-MAPK - p44ERK1 - p44MAPK