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FLASH GENE
Symbol WNK2 contributors: mct - updated : 15-06-2011
HGNC name WNK lysine deficient protein kinase 2
HGNC id 14542
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • a small N-terminal domain followed by a kinase domain
  • a cysteine in place of a lysine in catalytic subdomain II
  • the WNK kinase sequence signature within the subdomains I and II
  • regulatory C-terminal including a highly conserved acidic motif and two coil-coil domains
  • HOMOLOGY
    Homologene
    FAMILY
  • MEKK protein kinase family
  • Ser/Thr protein kinase family
  • WNK (with-no-lysine [K]) subfamily of protein kinases
  • CATEGORY enzyme , antigen , receptor membrane serine/threonine
    SUBCELLULAR LOCALIZATION     intracellular
    intracellular,cytoplasm
    basic FUNCTION
  • cytoplasmic serine-threonine kinase containing cysteine in place of the lysine found at the conserved ATP-binding location in subdomain II of protein kinases
  • involved in the modulation of growth factor-induced cancer cell proliferation through the MAP2K1/ERK1/2 pathway
  • candidate tumor suppressor gene, having potentially a coordinated activity of WNK kinases in the regulation of cell proliferation
  • cell growth regulator that modulates activation of the ERK1/2 protein kinase and is epigenetically silenced in gliomas
  • controls a RhoA-mediated cross-talk mechanism that regulates the efficiency with which MAP2K1 can activate ERK1/2 upon growth factor stimulation
  • with WNK1, WNK3, WNK4, have vital roles in the control of salt homeostasis and blood pressure
  • negatively regulate epidermal growth factor receptor signaling via inhibition of MAP2K1
  • role for WNK2 in the regulation of SLC12A2, SLC12A5 in the mammalian brain, with implications for both cell volume regulation and/or GABAergic signaling
  • might activate SLC12A2 indirectly via STK39
  • control GTP-loading of RAC1, a signalling guanosine triphosphatase involved in cell migration and motility
  • tumour-suppressing role of WNK2 that is related to RAC1 signalling and tumour cell invasion and proliferation
  • important role for WNK2 in the control of glia-derived cell migration and tumorigenic growth
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
  • forms a protein complex in the mammalian brain with STK39, a known phosphoregulator of SLC12A2
  • INTERACTION
    DNA
    RNA
    small molecule nucleotide,
  • ATP binding
  • protein
  • promotes Cl- accumulation by reciprocally activating SLC12A2 and inhibiting SLC12A5 in a kinase-dependent manner
  • cell & other
    REGULATION
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    tumoral     --low  
    aberrantly methylated in 83p100 and 71p100 of grade II and III meningiomas, respectively
    tumoral     --low  
    by promoter methylation in 17.5 p100 of adult gliomas
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
    ANIMAL & CELL MODELS