PKCI: an AGC protein kinase of the PKC family. A calcium-independent, phospholipid-dependent atypical protein kinase C. Is not activated by phorbolesters or diaglycerol. May play role in the secretory response to nutrients. Involved in cell polarization processes and the formation of epithelial tight junctions. Predominantly expressed in lung and brain, but also expressed at lower levels in many tissues including pancreatic islets.
Protein type: Oncoprotein; EC 2.7.11.13; Protein kinase, AGC; Kinase, protein; Motility/polarity/chemotaxis; Tumor suppressor; Cell development/differentiation; Cell adhesion; Protein kinase, Ser/Thr (non-receptor); AGC group; PKC family; Iota subfamily
Chromosomal Location of Human Ortholog: 3q26.3
Cellular Component: microtubule cytoskeleton; Golgi membrane; intercellular bridge; protein complex; tight junction; apical plasma membrane; cytoplasm; leading edge; plasma membrane; nucleus; cytosol; endosome
Molecular Function: protein domain specific binding; protein serine/threonine kinase activity; protein binding; protein kinase C activity; metal ion binding; phospholipid binding; ATP binding; protein kinase activity
Biological Process: intercellular junction assembly and maintenance; cell migration; secretion; nerve growth factor receptor signaling pathway; establishment of apical/basal cell polarity; actin filament organization; cytoskeleton organization and biogenesis; protein amino acid phosphorylation; activation of NF-kappaB transcription factor; vesicle-mediated transport; establishment and/or maintenance of epithelial cell polarity; positive regulation of glucose import; eye photoreceptor cell development; cellular response to insulin stimulus; negative regulation of neuron apoptosis; Golgi vesicle budding; protein targeting to membrane; negative regulation of apoptosis
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