MEK5 Antibody – Mouse Monoclonal

The protein encoded by this gene is a dual specificity protein kinase that belongs to the MAP kinase kinase family. This kinase specifically interacts with and activates MAPK7/ERK5. This kinase itself can be phosphorylated and activated by MAP3K3/MEKK3, as well as by atypical protein kinase C isoforms (aPKCs). The signal cascade mediated by this kinase is involved in growth factor stimulated cell proliferation and muscle cell differentiation. Three alternatively spliced transcript variants of this gene encoding distinct isoforms have been described. [provided by RefSeq, May 2011]

MEK5: a dual specificity protein kinase of the STE7 family. Activates ERK5 and is itself phosphorylated and activated by MEKK3, as well as by atypical protein kinase C isoforms. Involved in growth factor stimulated cell proliferation and muscle cell differentiation. Four alternatively spliced isoforms have been described.

Protein type: EC 2.7.12.2; Kinase, protein; Protein kinase, STE; Protein kinase, dual-specificity (non-receptor); STE group; STE7 family

Chromosomal Location of Human Ortholog: 15q23

Cellular Component: cytoplasm

Molecular Function: protein binding; protein kinase activity; receptor signaling protein serine/threonine kinase activity

Biological Process: activation of MAPK activity; inhibition of NF-kappaB transcription factor; negative regulation of caspase activity; negative regulation of heterotypic cell-cell adhesion; negative regulation of interleukin-8 biosynthetic process; negative regulation of transcription from RNA polymerase II promoter; positive regulation of protein metabolic process; positive regulation of transcription from RNA polymerase II promoter; signal transduction