Fc gamma RIIIB/CD16b Antibody (245514) [Alexa Fluor® 594]

Human peripheral blood granulocytes were stained with Mouse Anti-Human Fc gamma RIIIB/CD16)b Alexa Fluor® 594-conjugated Monoclonal Antibody (Catalog # FAB1597T, filled histogram) or Mouse IgG2B Alexa Fluor 594 Isotype Control (Catalog # IC0041T, open histogram). View our protocol for Staining Membrane-associated Proteins.

Product Discontinued

Fc gamma RIIIB/CD16b Antibody (245514) [Alexa Fluor® 594] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant human Fc gamma RIIIB/CD16b
  Thr20-Gln208
  Accession # O75015
• Specificity: Detects human Fc gamma RIIIB/CD16b in direct ELISAs and Western blots. In Western blots, no cross-reactivity with recombinant human Fc gamma RIIA or recombinant mouse Fc gamma RIII is observed. In flow cytometry of whole blood, recognition of Fc gamma RIIIB on the granulocyte population, but not Fc gamma RIIIA on NK cells, is observed.
• Source: N/A
• Isotype: IgG2b
• Clonality: Monoclonal
• Host: Mouse
• Gene: FCGR3B
• Purity Statement: Protein A or G purified from hybridoma culture supernatant

Applications/Dilutions

• Dilutions:
  • Flow Cytometry 0.25-1 ug/10^6 cells
• Application Notes: Flow Cytometry: Please use 0.25-1 ug of conjugated antibody per 10e6 cells.

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.
• Buffer: Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
• Preservative: 0.09% Sodium Azide
• Concentration: Please see the vial label for concentration. If unlisted please contact technical services.

Notes

This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Fc gamma RIIIB/CD16b Antibody (245514) [Alexa Fluor® 594]

• CD16
• CD16b antigen
• CD16b
• Fc fragment of IgG, low affinity IIIb, receptor (CD16b)
• Fc fragment of IgG, low affinity IIIb, receptor for (CD16)
• Fc gamma RIIIB
• FCG3
• Fc-gamma receptor IIIb (CD 16)
• Fc-gamma RIII
• Fc-gamma RIIIb
• Fc-gamma RIII-beta
• FCGR3
• FCGR3B
• FcgRIIIB
• FcR-10
• fcRIII
• FCRIIIB
• IGFR3
• IgG Fc receptor III-1
• low affinity immunoglobulin gamma Fc region receptor III-B

Background

Receptors for the Fc region of IgG (Fc gamma R) are members of the Ig superfamily. Based on their genetic organization and molecular structure, three classes of human Fc gamma Rs: RI (CD64), RII (CD32), and RIII (CD16), which generate multiple isoforms, are recognized (1‑3). These receptors function in the activation or inhibition of immune responses. The activating-type receptor either has, or associates non-covalently with an accessory subunit (FcR gamma or zeta  chain) that has an immunoreceptor tyrosine-based activation motif (ITAM) in its cytoplasmic domain. In contrast, the inhibitory receptor (Fc gamma RIIB) has a built-in immunoreceptor tyrosine-based inhibitory motif (ITIM) in its own cytoplasmic domain. Fc gamma RI is a high-affinity receptor that binds monomeric IgG. Both Fc gamma RII and RIII are low-affinity receptors that bind IgG in the form of immune complexes. Two genes for human Fc gamma RIII, A and B, encoding a transmembrane receptor and a glycosylphosphatidylinositol (GPI) anchored protein, respectively, have been identified. Three allelic variants of Fc gamma RIIIB, NA-1, NA-2, and SH, exist. A soluble form of Fc gamma RIIIB corresponding to the extracellular region of the receptor is produced by proteolytic cleavage and circulates in plasma and other body fluids. The extracellular domains of Fc gamma RIIIA and B share 97% amino acid sequence homology. Whereas Fc gamma RIIIA is expressed on most effector cells of the immune system including macrophage, monocyte, NK cells, mast cells, eosinophils, dendritic cells, and Langerhans cells, Fc gamma RIIIB is selectively expressed in neutrophils and eosinophils. Signaling through Fc gamma RIIIA results in oxidative burst, cytokine release and phagocytosis by macrophages, antibody-dependent cellular cytotoxicity by natural killer cells and degranulation of mast cells. By contrast, Fc gamma RIIIB is a decoy receptor that binds IgG complexes without triggering activation. Soluble Fc gamma RIIIB has a regulatory role in inflammatory processes (4). It interacts with complement receptors CR3 and CR4 on monocytes to induce the production of pro-inflammatory cytokines.

1. van de Winkel, J. and P. Capes (1993) Immunol. Today 14:215.
2. Ravetch, J.V. and S. Bolland (2001) Annu. Rev. Immunol. 19:275.
3. Takai, T. (2002) Nature Rev. Immunol. 2:580.
4. Gauchat, G.J. et al. (1996) J. Immunol. 157:1184.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: FCGR3B
• Uniprot:
  • O75015()