Description
The 190909 antibody specifically recognizes a common epitope on the extracellular domains of CD16 (also known as, Fc gamma RIII) and CD32 (Fc gamma RII). CD16 and CD32 serve as low affinity receptors for mouse IgG Fc constant regions and play roles in the activation or inhibition of phagocytosis, antibody-dependent cellular cytotoxicity (ADCC), degranulation, and B cell proliferation. These receptors are variably expressed on B lymphocytes, natural killer (NK) cells, monocytes, macrophages, dendritic cells, Kupffer cells, granulocytes, mast cells, immature thymocytes, and some activated mature T lymphocytes. CD16 and CD32 are single-pass type I transmembrane glycoproteins with two extracellular Ig-like domains and belong to the Ig superfamily. Ligand-bound CD16 can associate with two disulfide-linked FcR-gamma subunits (FcεRIγ) that contain cytoplasmic immunoreceptor tyrosine-based activation motifs (ITAMs) which deliver activating signals intracellularly. CD32 has an intracellular domain with an immunoreceptor tyrosine-based inhibitory motif (ITIM) and functions as an inhibitory receptor.
BD® CompBeads can be used as surrogates to assess fluorescence spillover (compensation). When fluorochrome conjugated antibodies are bound to BD® CompBeads, they have spectral properties very similar to cells. However, for some fluorochromes there can be small differences in spectral emissions compared to cells, resulting in spillover values that differ when compared to biological controls. It is strongly recommended that when using a reagent for the first time, users compare the spillover on cells and BD® CompBeads to ensure that BD® CompBeads are appropriate for your specific cellular application.
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to the dye under optimum conditions that minimize unconjugated dye and antibody.
1. Researchers should determine the optimal concentration of this reagent for their individual applications.
2. The production process underwent stringent testing and validation to assure that it generates a high-quality conjugate with consistent performance and specific binding activity. However, verification testing has not been performed on all conjugate lots.
3. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
4. An isotype control should be used at the same concentration as the antibody of interest.
5. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
6. CF™ is a trademark of Biotium, Inc.
7. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
8. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
9. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
