UniprotKB/SwissProt ID: A2AAJ9 (A2AAJ9)
Gene Name:
Obscn
Organism: Mus musculus (Mouse)
Function: Structural component of striated muscles which plays a role in myofibrillogenesis. Probably involved in the assembly of myosin into sarcomeric A bands in striated muscle (By similarity). Has serine/threonine protein kinase activity and phosphorylates N-cadherin CDH2 and sodium/potassium-transporting ATPase subunit ATP1B1 (PubMed:23392350). Binds (via the PH domain) strongly to phosphatidylinositol 3,4-bisphosphate (PtdIns(3,4)P2) and phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2), and to a lesser extent to phosphatidylinositol 3-phosphate (PtdIns(3)P), phosphatidylinositol 4-phosphate (PtdIns(4)P), phosphatidylinositol 5-phosphate (PtdIns(5)P) and phosphatidylinositol 3,4,5-trisphosphate (PtdIns(3,4,5)P3) (By similarity) Isoform 2 and isoform 3: bind phosphatidylinositol bisphosphates (PIP2s) via their PH domains and negatively regulate the PI3K/AKT/mTOR signaling pathway, thus contributing to the regulation of cardiomyocyte size and adhesion
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Cytoplasm, myofibril, sarcomere, M line. Cytoplasm, myofibril, sarcomere, Z line. Cell membrane, sarcolemma. Nucleus. Secreted. Cell membrane. Cell membrane
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