| Gene Symbol |
MAPKAPK3
|
| Entrez Gene |
7867
|
| Alt Symbol |
3PK, MAPKAP-K3, MAPKAP3, MAPKAPK-3, MK-3
|
| Species |
Human
|
| Gene Type |
protein-coding
|
| Description |
mitogen-activated protein kinase-activated protein kinase 3
|
| Other Description |
MAP kinase-activated protein kinase 3|MAPK-activated protein kinase 3|MAPKAP kinase 3|chromosome 3p kinase
|
| Swissprots |
Q16644 B5BU67
|
| Accessions |
EAW65131 EAW65132 EAW65133 Q16644 AB451303 BAG70117 AB451434 BAG70248 AK290969 BAF83658 AK313565 BAG36339 BC001662 AAH01662 BC007591 AAH07591 BC010407 AAH10407 BC068497 BE301676 BM848086 DB450001 EU832627 ACE87718 EU832702 ACE87034 HQ447828 ADQ32312 U09578 AAD09136 U43784 AAC50428 XR_940501 NM_001243925 NP_001230854 NM_001243926 NP_001230855 NM_004635 NP_004626
|
| Function |
Stress-activated serine/threonine-protein kinase involved in cytokines production, endocytosis, cell migration, chromatin remodeling and transcriptional regulation. Following stress, it is phosphorylated and activated by MAP kinase p38- alpha/MAPK14, leading to phosphorylation of substrates. Phosphorylates serine in the peptide sequence, Hyd-X-R-X(2)-S, where Hyd is a large hydrophobic residue. MAPKAPK2 and MAPKAPK3, share the same function and substrate specificity, but MAPKAPK3 kinase activity and level in protein expression are lower compared to MAPKAPK2. Phosphorylates HSP27/HSPB1, KRT18, KRT20, RCSD1, RPS6KA3, TAB3 and TTP/ZFP36. Mediates phosphorylation of HSP27/HSPB1 in response to stress, leading to dissociate HSP27/HSPB1 from large small heat-shock protein (sHsps) oligomers and impair their chaperone activities and ability to protect against oxidative stress effectively. Involved in inflammatory response by regulating tumor necrosis factor (TNF) and IL6 production post-transcr
|
| Subcellular Location |
Nucleus {ECO:0000269|PubMed:15302577}. Cytoplasm {ECO:0000269|PubMed:15302577}. Note=Predominantly located in the nucleus, when activated it translocates to the cytoplasm.
|
| Tissue Specificity |
Widely expressed, with a higher expression level observed in heart and skeletal muscle. No expression in brain. {ECO:0000269|PubMed:8622688, ECO:0000269|PubMed:8626550}.
|
| Top Pathways |
VEGF signaling pathway, MAPK signaling pathway
|
