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FLASH GENE
Symbol FCGR2A contributors: mct - updated : 21-06-2017
HGNC name Fc fragment of IgG, low affinity IIa, receptor (CD32)
HGNC id 3616
EXPRESSION
Type
   expressed in (based on citations)
organ(s)
SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
Visualeyeuveachoroid  
tissue
SystemTissueTissue level 1Tissue level 2LevelPubmedSpeciesStageRna symbol
Blood / Hematopoietic    
Connectivebonesubchondral  
Epithelialbarrier/liningretinal pigment epithelium (RPE)  
cells
SystemCellPubmedSpeciesStageRna symbol
Blood/Hematopoieticgranulocyte
Blood/Hematopoieticmonocyte
Blood/Hematopoieticplatelet
Respiratoryalveolar macrophage
cell lineage primarily, by cells of the myeloid lineage
cell lines
fluid/secretion
at STAGE
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • single chain transmembrane (TM) protein
  • two Ig extracellular domains
  • a cytoplasmic tail with the immunoreceptor tyrosine based inhibitory motifs (ITIM)
  • mono polymer hexamer
    HOMOLOGY
    Homologene
    FAMILY
    CATEGORY antigen , receptor
    SUBCELLULAR LOCALIZATION     plasma membrane
    basic FUNCTION
  • binding to the Fc region of immunoglobulins gamma
  • playing a role in the potentiation of platelet activation induced by weak stimulation
  • FCGR2A engagement of tissue soluble immune complexes generates NETs (neutrophil extracellular traps), a proinflammatory process linked to autoimmunity
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
    INTERACTION
    DNA
    RNA
    small molecule
    protein
  • GZMB is an important mediator of FCGR2A function in human monocytes
  • cell & other
    REGULATION
    activated by in platelets downstream G-protein-coupled receptors (may be a novel general mechanism for the reinforcement of platelet activation induced by low concentrations of agonists) (Canobbio 2006)
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Susceptibility
  • to glomerulonephritis in Caucasoid patients with lupus erythematosus
  • to acute coronary syndromes (ACS)
  • to severe falciparum malaria
  • to Kawasaki disease
  • to Takayasu arteritis
  • Variant & Polymorphism SNP
  • Fc gamma RIIa-H/R131, over-represented
  • association of the R/R131 genotype with a more frequent occurrence of ACS as the first manifestation of coronary artery disease
  • FCGR2a131RR positively associated with severe falciparum malaria and, more specifically, with severe malarial anaemia, one of the most prevalent malaria complications
  • rs1801274 in FCGR2A highly associated to Kawasaki disease
  • genetic association between Takayasu arteritis and the FCGR2A/FCGR3A locus
  • Candidate gene
    Marker
    Therapy target
    ANIMAL & CELL MODELS