MAPK10 Antibody – Rabbit

The protein encoded by this gene is a member of the MAP kinase family. MAP kinases act as an integration point for multiple biochemical signals, and are involved in a wide variety of cellular processes such as proliferation, differentiation, transcription regulation and development. This protein is a neuronal-specific form of c-Jun N-terminal kinases (JNKs). Through its phosphorylation and nuclear localization, this kinase plays regulatory roles in the signaling pathways during neuronal apoptosis. Beta-arrestin 2, a receptor-regulated MAP kinase scaffold protein, is found to interact with, and stimulate the phosphorylation of this kinase by MAP kinase kinase 4 (MKK4). Cyclin-dependent kianse 5 can phosphorylate, and inhibit the activity of this kinase, which may be important in preventing neuronal apoptosis. Four alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008]

JNK3: a protein kinase of the MAPK family that is potently activated by a variety of environmental stress and pro-inflammatory cytokines. Brain-selective JNK isoform. A pro-apoptotic protein and potential tumor suppressor. Phosphorylates a number of transcription factors including c-Jun, ATF2 and ELK1. Required for stress-induced neuronal apoptosis and the pathogenesis of glutamate excitotoxicity. CDK5 can phosphorylate and inhibit the activity of this kinase, which may be important in preventing neuronal apoptosis. Binds to at least four scaffolding proteins, JIP-1, -2, -3 and -4. Interacts with HDAC9. Expression lost in brain tumors. May function in neuronal cell death from injury and neurodegeneration, for which inhibitors are being developed. Two alternatively spliced transcript variants have been reported.

Protein type: Protein kinase, CMGC; Kinase, protein; EC 2.7.11.24; Protein kinase, Ser/Thr (non-receptor); CMGC group; MAPK family; MAPK/JNK subfamily; JNK subfamily

Chromosomal Location of Human Ortholog: 4q22.1-q23

Cellular Component: nucleoplasm; mitochondrion; cytoplasm; plasma membrane; cytosol

Molecular Function: MAP kinase kinase activity; protein binding; JUN kinase activity; ATP binding

Biological Process: response to light stimulus; activation of MAPK activity; MyD88-independent toll-like receptor signaling pathway; stress-activated MAPK cascade; rhythmic process; toll-like receptor 3 signaling pathway; regulation of circadian rhythm; signal transduction; protein amino acid phosphorylation; toll-like receptor 10 signaling pathway; toll-like receptor 2 signaling pathway; JUN phosphorylation; toll-like receptor 5 signaling pathway; MyD88-dependent toll-like receptor signaling pathway; regulation of transcription factor activity; toll-like receptor signaling pathway; JNK cascade; innate immune response; toll-like receptor 9 signaling pathway; toll-like receptor 4 signaling pathway