Definition: A 44-kDa extracellular signal-regulated MAP kinase that may play a role the initiation and regulation of MEIOSIS; MITOSIS; and postmitotic functions in differentiated cells. It phosphorylates a number of TRANSCRIPTION FACTORS; and MICROTUBULE-ASSOCIATED PROTEINS.
Other names p44mpk, PSTkinase; Mitogen Activated Protein Kinase 3; Microtubule Associated Protein 2 Kinase; MAPK3 Mitogen Activated Protein Kinase; Kinase, Microtubule-Associated Protein-2; Kinase, ERK1; Extracellular Signal Regulated Kinase 1; p44 MAPK; Protein-Serine-Threonine Kinase p44(mpk); Microtubule-Associated Protein-2 Kinase; Meiosis-Activated Myelin Basic Protein Kinase p44(; PSTkinase p44mpk; MAPK3 Mitogen-Activated Protein Kinase; ERK1 Kinase; Extracellular Signal-Regulated Kinase 1