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FLASH GENE
Symbol PRKCZ contributors: mct/npt/pgu - updated : 09-07-2014
HGNC name protein kinase C, zeta
HGNC id 9412
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • an octicosapeptide, Ca2+ binding motif
  • a phorbol-ester/DAG-type zinc finger domain (C1)
  • a catalytic domain
  • mono polymer complex
    HOMOLOGY
    interspecies homolog to rattus Prkcz (96.1pc)
    homolog to murine Prkcz (95.6pc)
    homolog to Drosophila aPKC (62pc)
    Homologene
    FAMILY
  • protein kinase superfamily
  • AGC Ser/Thr protein kinase family
  • PKC subfamily
  • CATEGORY enzyme
    SUBCELLULAR LOCALIZATION     plasma membrane,junction,tight
        intracellular
    intracellular,cytoplasm,organelle,endosome
    basic FUNCTION
  • endogenous stabilizer of microtubule cytoskeleton EGF protection and of intestinal barrier function against oxidative injury
  • acting as a serine-threonine kinase
  • mediating insulin effects on glucose transport in cultured preadipocyte-derived human adipocytes
  • serving as the receptor for phorbol esters, a class of tumor promoters
  • playing a central role in epithelial cell polarization
  • involved in the control of pre-mRNA splicing and partcularly controling DNA topoisomerase-dependent
  • plays an important role in supporting cell survival
  • may function as a physiological BAX kinase to directly phosphorylate and interact with BAX, leading to sequestration of BAX in cytoplasm and abrogation of the proapoptotic function of BAX
  • caspase-2 pre-mRNA splicing
  • regulator of cardiomyocyte myofilament protein phosphorylation
  • might play an important role during the cardiac hypertrophic process
  • regulates epidermal growth factor-induced chemotaxis of breast cancer cells
  • required for macrophage migration and is required for CSF1-induced chemotaxis of macrophages
  • expression of PRKCZ and PRKCI or both are dispensable for primitive and adult hematopoietic stem cell fate determination in steady-state and stress hematopoiesis
  • NTRK2 and PRKCZ, two critical regulators of synaptic plasticity, facilitate DLG4 targeting to synapses
  • is a critical metabolic tumor suppressor in cancer (PMId: 23374352)
  • acts as a metabolic tumor suppressor by inhibiting PHGDH expression and activity
  • direct or indirect role for PRKCZ in the biochemical response to nutrient stress activated by the lack of glucose in cells that require this nutrient for survival and growth
  • is a critical player in the important metabolic pathway for cancer
  • CELLULAR PROCESS cell life, differentiation
    cell life, proliferation/growth
    cell life, antiapoptosis
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    intracellular signaling cascade
    a component
  • forming a complex with PARD3, PARD6A or PARD6B or PARD6G and CDC42 or RAC1
  • forming a complex with PARD3, PARD6A, CDC42, ALS2CR19
  • forming a ternary complex with SQSTM1 and KCNAB2
  • forming a ternary complex composed of SQSTM1 and PAWR
  • forming another ternary complex with SQSTM1 and GABRR3
  • forming a complex with SQSTM1 and MAP2K5
  • important role for the Rho GTPase/PRKCZ/transforming growth factor beta-activated kinase 1/NF-kappaB pathway in host defense and in proinflammatory cytokine synthesis induced by bacterial LPS
  • INTERACTION
    DNA
    RNA
    small molecule metal binding, nucleotide,
  • Zn2+
  • ATP
  • protein
  • SLC39A1
  • SLC39A2
  • KCNAB2
  • PARD6A
  • PARD6B
  • PARD6G
  • SQSTM1
  • CENTA1
  • IKBKB
  • interacting with PRKCQ and PRKCI
  • associates functionally with RHOA and acts as a signaling component downstream of RHOA
  • PRKCZ binds and phosphorylates MAPK7, thereby decreasing NOS3 protein stability and contributing to early events of atherosclerosis
  • EYA1 phosphatase functions through PRKCZ-NOTCH1 signaling to control cell polarity in the lung epithelium
  • represses the expression of PHGDH and PSAT1, and phosphorylates PHGDH at key residues to inhibit its enzymatic activity
  • in response to mechanical stretch, APPL1 enhances glucose uptake by modulating the activation and localization of PRKCZ, as well as its functional interaction with both PPP2CA and MYO2A
  • cell & other
  • diacylglycerol
  • REGULATION
    activated by slightly enhanced by arachidonic acid
    diacylglycerol
    phosphatidylinositol 3,4,5-trisphosphate
    Other regulated by ECT2 and PARD6A
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
    SystemTypeDisorderPubmed
    immunologyinflammatory 
    may constitute potential therapeutic targets for inflammatory joint diseases involving increased collagenase expression
    ANIMAL & CELL MODELS
    target dysruption of PKCZ in mice results in impair of the NF Kappa B pathway