Proximity Ligation Analysis of protein-protein interactions between FCGR3A and FCGR1A. HeLa cells were stained with anti-FCGR3A rabbit purified polyclonal 1:1200 and anti-FCGR1A mouse monoclonal antibody 1:50. Each red dot represents the detection of protein-protein interaction complex, and nuclei were counterstained with DAPI (blue).
This gene encodes a receptor for the Fc portion of immunoglobulin G, and it is involved in the removal of antigen-antibody complexes from the circulation, as well as other other antibody-dependent responses. This gene (FCGR3A) is highly similar to another nearby gene (FCGR3B) located on chromosome 1. The receptor encoded by this gene is expressed on natural killer (NK) cells as an integral membrane glycoprotein anchored through a transmembrane peptide, whereas FCGR3B is expressed on polymorphonuclear neutrophils (PMN) where the receptor is anchored through a phosphatidylinositol (PI) linkage. Mutations in this gene have been linked to susceptibility to recurrent viral infections, susceptibility to systemic lupus erythematosus, and alloimmune neonatal neutropenia. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq
Fc fragment of IgG, low affinity III, receptor for (CD16),Fc fragment of IgG, low affinity IIIa, receptor for (CD16),Fc gamma receptor III-A,Fc-gamma RIII-alpha,Fc-gamma RIIIa,Fc-gamma receptor III-2 (CD 16),Fc-gamma receptor IIIb (CD16),FcgammaRIIIA,OTTH