• Species Reactivity

  Mouse

• Specificity

  Detects mouse Fc gamma RIIIA/B (CD16) in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant mouse Fcrl3/CD16-2, rmFc gamma RIA or rhFc gamma RIIA is observed.

• Source

  Monoclonal Rat IgG    _2A Clone # 275003

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant mouse Fc gamma  RIII    
  Ala31-Thr215    
  Accession # Q5D5J5

• Formulation

  Supplied in a saline solution containing BSA and Sodium Azide.

• Label

  PerCP (Peridinin-chlorophyll Protein Complex)

Applications

• Recommended    
  Concentration

  Sample

• Flow Cytometry

  10 μL/10    ⁶ cells

  See below

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Protect from light.    Do not freeze.    

• 12 months from date of receipt, 2 to 8 °C as supplied.

Background: Fc gamma RIII (CD16)

Receptors for the Fc region of IgG (Fc gamma Rs) are members of the Ig superfamily that function in the activation or inhibition of immune responses such as degranulation, phagocytosis, ADCC (antibody-dependent cellular toxicity), cytokine release, and B cell proliferation (1?3). The Fc gamma Rs have been divided into three classes based on close relationships in their extracellular domains; these groups are designated Fc gamma  RI (also known as CD64), Fc gamma  RII (CD32), and Fc gamma  RIII (CD16). Each group may be encoded by multiple genes and exist in different isoforms depending on species and cell type. The CD64 proteins are high affinity receptors (~10^-8?10^-9 M) capable of binding monomeric IgG, whereas the CD16 and CD32 proteins bind IgG with lower affinities (~10^-6?10^-7 M) only recognizing IgG aggregates surrounding multivalent antigens (1, 4). Fc gamma Rs that deliver an activating signal either have an intrinsic immunoreceptor tyrosine-based activation motif (ITAM) within their cytoplasmic domains or associate with one of the ITAM-bearing adapter subunits, Fc R gamma or zeta (3, 5). The only inhibitory member in human and mouse, Fc gamma  RIIb, has an intrinsic cytoplasmic immunoreceptor tyrosine-based inhibitory motif (ITIM). The coordinated functioning of activating and inhibitory receptors is necessary for successful initiation, amplification, and termination of immune responses (5). Mouse CD16 is encoded by a single gene. The protein product is a type I transmembrane protein having two extracellular Ig-like domains. It is expressed on a variety of myeloid and lymphoid cells (4) and associates with Fc R gamma to deliver an activating signal upon ligand binding (5). Mouse CD32 is closely related to mouse CD16 throughout its extracellular domain (95% amino acid sequence identity), but has a divergent cytoplasmic domain and functions as an inhibitory receptor. Together these proteins constitute an activating/inhibiting receptor pair to regulate immune responses (5).

• References:

1. van de Winkel, J. and P. Capes (1993) Immunol. Today 14:215. 

2. Raghaven, M. and P. Bjorkman (1996) Annu. Rev. Cell Dev. Biol. 12:181. 

3. Ravetch, J. and S. Bolland (2001) Annu. Rev. Immunol. 19:275.

4. Takai, T. (2002) Nature Rev. Immunol. 2:580.

5. Ravetch, J. and L. Lanier (2000) Science 290:84.

• Long Name:

  Fc gamma Receptor III

• Entrez Gene IDs:

  14131 (Mouse); 102140945 (Cynomolgus Monkey)

• Alternate Names:

  Fc gamma RIII; FcgRIII