MAPK15
Atypical MAPK protein that regulates several process such as autophagy, ciliogenesis, protein trafficking/secretion and genome integrity, in a kinase activity-dependent manner (PubMed:22948227, PubMed:24618899, PubMed:29021280, PubMed:21847093, PubMed:20733054). Controls both, basal and starvation-i...
Atypical MAPK protein that regulates several process such as autophagy, ciliogenesis, protein trafficking/secretion and genome integrity, in a kinase activity-dependent manner (PubMed:22948227, PubMed:24618899, PubMed:29021280, PubMed:21847093, PubMed:20733054). Controls both, basal and starvation-induced autophagy throught its interaction with GABARAP, MAP1LC3B and GABARAPL1 leading to autophagosome formation, SQSTM1 degradation and reduced MAP1LC3B inhibitory phosphorylation (PubMed:22948227). Regulates primary cilium formation and the localization of ciliary proteins involved in cilium structure, transport, and signaling (PubMed:29021280). Prevents the relocation of the sugar-adding enzymes from the Golgi to the endoplasmic reticulum, thereby restricting the production of sugar-coated proteins (PubMed:24618899). Upon amino-acid starvation, mediates transitional endoplasmic reticulum site disassembly and inhibition of secretion (PubMed:21847093). Binds to chromatin leading to MAPK15 activation and interaction with PCNA, that which protects genomic integrity by inhibiting MDM2-mediated degradation of PCNA (PubMed:20733054). Regulates DA transporter (DAT) activity and protein expression via activation of RhoA (PubMed:28842414). In response to H2O2 treatment phosphorylates ELAVL1, thus preventing it from binding to the PDCD4 3'UTR and rendering the PDCD4 mRNA accessible to miR-21 and leading to its degradation and loss of protein expression (PubMed:26595526). Also functions in a kinase activity-independent manner as a negative regulator of growth (By similarity). Phosphorylates in vitro FOS and MBP (PubMed:11875070, PubMed:16484222, PubMed:20638370, PubMed:19166846). During oocyte maturation, plays a key role in the microtubule organization and meiotic cell cycle progression in oocytes, fertilized eggs, and early embryos (By similarity). Interacts with ESRRA promoting its re-localization from the nucleus to the cytoplasm and then prevents its transcriptional activity (PubMed:21190936).
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GO - Biological processes (BP):
cellular response to DNA damage stimulus, dopamine uptake, endoplasmic reticulum organization, intracellular signal transduction, negative regulation of cell migration, positive regulation of cell population proliferation, positive regulation of metaphase/anaphase transition of meiosis I, positive r...
cellular response to DNA damage stimulus, dopamine uptake, endoplasmic reticulum organization, intracellular signal transduction, negative regulation of cell migration, positive regulation of cell population proliferation, positive regulation of metaphase/anaphase transition of meiosis I, positive regulation of spindle assembly, positive regulation of telomerase activity, positive regulation of telomere capping, positive regulation of telomere maintenance via telomerase, protein autophosphorylation, protein localization to ciliary transition zone, regulation of autophagy, regulation of cilium assembly, regulation of COPII vesicle coating, regulation of gene expression
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GO - Molecular function (MF):
ATP binding, chromatin binding, kinase activity, MAP kinase activity, protein kinase activity, SH3 domain binding...
ATP binding, chromatin binding, kinase activity, MAP kinase activity, protein kinase activity, SH3 domain binding
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GO - Cellular component (CC):
centriole, ciliary basal body, meiotic spindle, extracellular region, Golgi apparatus, nucleus, autophagosome, bicellular tight junction, cell-cell junction, cytoplasm, cytoplasmic vesicle...
centriole, ciliary basal body, meiotic spindle, extracellular region, Golgi apparatus, nucleus, autophagosome, bicellular tight junction, cell-cell junction, cytoplasm, cytoplasmic vesicle
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