Stress-activated protein kinase JNK

UniProtKB accession:  P92208

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Mitogen-activated protein kinase and key component of the c-Jun N-terminal kinase (JNK) pathway which phosphorylate and activate transcription factors involved in a wide range of biological processes including response to various stresses, cellular proliferation, differentiation and migration, and regulation of cell shape (PubMed:8946915, PubMed:9224720, PubMed:10433922, PubMed:11784101, PubMed:22227521, PubMed:25594180, PubMed:28396149, PubMed:37138087). Responds to activation by environmental stress by phosphorylating a number of transcription factors, primarily components of AP-1 such as Jra and also the transcriptional repressor aop, and thus regulates transcriptional activity (PubMed:9224720). Component of the immune response activated by bacterial infection, and is involved in wound healing and in dorsal closure, a morphogenetic movement during embryogenesis (PubMed:8946915, PubMed:9224720, PubMed:10433922, PubMed:11784101). Functions in the systematic response to wounding acting downstream of the Hayan-phenoloxidase PPO1 cascade (PubMed:22227521). During epidermal wound healing involved in cellular polarization by inducing the translocation of sktl and mys/integrin beta to the trailing edge (PubMed:31704968). Exhibits cytoprotective activity in neuronal cells in response to wounding to the integument (PubMed:22227521). Controls the expression of a phosphatase, puckered, at the edges of wounded epidermal tissue and in the dorsal epithelium during dorsal closure (PubMed:10433922, PubMed:11784101). Regulates the activity of SREBP in neurons and thereby the accumulation of lipids in glia (PubMed:25594180). Plays a role in positively regulating the expression of DIP2 independently of AP-1, thereby ensuring proper axon guidance in mushroom bodies (PubMed:28396149). In enterocytes and differentiating progenitors of the gut that are experiencing inorganic phosphate (Pi) deficiency, activated by Cka to induce nearby progenitor cells to proliferate and form new absorptive cells, probably helping the organism to cope with the nutrient deficiency by maximizing absorption of dietary Pi (PubMed:37138087).