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Search Thermo Fisher Scientific
Invitrogen
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Specificity: 3G8 binds to CD16 at an epitope which is not the IgG-binding site. This antibody cannot distinguish between CD16a transmembrane isoform found on the surface of NK cells and macrophages (which can trigger the cytolytic response), and the GPI-linked CD16b isoform present on neutrophils or soluble CD16 found in the plasma. CD16 is the low affinity IgG receptor III and binds to aggregated IgG or IgG-antigen complex which functions in NK cell activation, phagocytosis and ADCC (antibody-dependent cell-mediated cytotoxicity).
CD16, known as Fc gamma receptor III, exists in two distinct isoforms: Fc gamma RIIIA and Fc gamma RIIIB. These isoforms are encoded by the genes FCGR3A and FCGR3B, respectively, which are located on chromosome 1 and share a high degree of similarity. Fc gamma RIIIA is expressed as a polypeptide-anchored form on monocytes, macrophages, and lymphocytes such as natural killer (NK) cells, but not on T or B cells. This receptor recognizes the Fc portion of immunoglobulin G (IgG) and is involved in the clearance of immune complexes from circulation. Upon binding IgG, Fc gamma RIIIA activates signal transduction pathways that result in antibody-dependent cell-mediated cytotoxicity (ADCC), phagocytosis, cytokine release, and antigen presentation. Fc gamma RIIIB is expressed on polymorphonuclear neutrophils (PMN) as a glycosylphosphatidylinositol (GPI)-anchored form. It plays a role in similar immune functions, including cellular-mediated cytotoxicity and enhancement of virus infections. Mutations in the FCGR3A gene have been associated with Immunodeficiency 20 and linked to susceptibility to recurrent viral infections, systemic lupus erythematosus, and alloimmune neonatal neutropenia. Alternatively spliced transcript variants encoding different isoforms have been identified for this gene. Diseases associated with FCGR3A include Immunodeficiency 20 and Herpes Zoster.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: CD16-I; CD16-II; CD16a; CD16a antigen; CD16b; CD32; CD32 receptor 2; CDw32; Fc fragment of IgG low affinity IIIa receptor; Fc fragment of IgG, low affinity III, receptor for (CD16); Fc fragment of IgG, low affinity IIIa, receptor (CD16a); Fc fragment of IgG, low affinity IIIb, receptor (CD16b); Fc gamma receptor III-A; Fc gamma receptor IIIa; Fc gamma receptor IIIb; Fc gamma RIIIa; Fc-gamma receptor III-2 (CD 16); Fc-gamma receptor IIIb (CD 16); Fc-gamma receptor IIIb (CD16); Fc-gamma RII-b; Fc-gamma RII-c; Fc-gamma RIII; Fc-gamma RIII-alpha; Fc-gamma RIII-beta; Fc-gamma RIIIa; fc-gamma RIIIb; Fc-gamma-RIIb; Fc-gamma-RIIc; FCG2; FcgammaRIIIA; FCGR2; FCGR2A; FCGR2B; FCGR2C; FcR-10; FcRII-b; FcRII-c; IgG Fc receptor III; IgG Fc receptor III-1; IgG Fc receptor III-2; IgG Fc receptor III-A; immunoglobulin G Fc receptor III; low affinity immunoglobulin gamma Fc region receptor III; Low affinity immunoglobulin gamma Fc region receptor III-A; Low affinity immunoglobulin gamma Fc region receptor III-B; neutrophil-specific antigen NA; RP11-5K23.1
Gene Aliases: CD16; CD16A; CD16B; FCG3; FCGR3; FCGR3A; FCGR3B; FCGRIII; FCR-10; FCRIII; FCRIIIA; FCRIIIb; IGFR3; IMD20
UniProt ID: (Rhesus monkey) A3RFZ7, (Human) P08637, (Human) O75015
Entrez Gene ID: (Rhesus monkey) 720006, (Human) 2214, (Human) 2215
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