Fc gamma RIIIA/CD16a Antibody (MEM-168)

Novus Biologicals, part of Bio-Techne | Catalog # NB500-523

Novus Biologicals, part of Bio-Techne
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NB500-523
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Key Product Details

Species Reactivity

Human, Porcine, Primate

Applications

Flow Cytometry

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgM Clone # MEM-168

Concentration

1.0 mg/ml

View all Fc gamma RIIIA/CD16a Antibodies »

Product Specifications

Immunogen

Human granulocytes.

Specificity

The antibody MEM-168 reacts with CD16 antigen, a low affinity receptor for aggregated IgG (FcgammaRIII antigen). CD16 exists in two different isoforms: CD16a (FcgammaRIIIA; 50-65 kDa; expressed on NK-cells, monocytes and macrophages) and CD16b (FcgammaRIIIB; 48 kDa; mainly expressed on neutrophils).

Clonality

Monoclonal

Host

Mouse

Isotype

IgM

Theoretical MW

65 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for Fc gamma RIIIA/CD16a Antibody (MEM-168)

Flow Cytometry: Fc gamma RIIIA/CD16a Antibody (MEM-168) [NB500-523]

Flow Cytometry: Fc gamma RIIIA/CD16a Antibody (MEM-168) [NB500-523]

Flow Cytometry: Fc gamma RIIIA/CD16a Antibody (MEM-168) [NB500-523] - Analysis using the Alexa Fluor (R) 647 conjugate of NB500-523. Staining of CD16a in human buffy coat using anti-CD16a antibody. The primary antibody was used at a dilution of 1:100 and incubated for 25 min at 4C in 2% human serum, 0.5 mM EDTA in DPBS. Ima
Flow Cytometry: Fc gamma RIIIA/CD16a Antibody (MEM-168) [NB500-523]

Flow Cytometry: Fc gamma RIIIA/CD16a Antibody (MEM-168) [NB500-523]

Flow Cytometry: Fc gamma RIIIA/CD16a Antibody (MEM-168) [NB500-523] - Surface staining of lysed and washed porcine peripheral blood with purified anti-CD16 (MEM-168) (detection by anti-mouse IgM FITC). Panel A - porcine PBMC stained with Isotype mouse IgM control (PFR-03) Panel B, C, D - three different porcine PMBC samples stained with anti-CD16 (MEM-168) Cells in the granulocyte gate were used for analysis.
Flow Cytometry: Fc gamma RIIIA/CD16a Antibody (MEM-168) [NB500-523]

Flow Cytometry: Fc gamma RIIIA/CD16a Antibody (MEM-168) [NB500-523]

Flow Cytometry: Fc gamma RIIIA/CD16a Antibody (MEM-168) [NB500-523] - Analysis using the Alexa Fluor (R) 488 conjugate of NB500-523. Staining of CD16a in human buffy coat using anti-CD16a antibody AF488. The primary antibody was used at a dilution of 1:100 and incubated for 25 min at 4C in 2% human serum, 0.5 mM EDTA in DPBS. Image from verified customer review.
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Applications for Fc gamma RIIIA/CD16a Antibody (MEM-168)

Application
Recommended Usage

Flow Cytometry

1-4 ug/ml

Reviewed Applications

Read 1 review rated 5 using NB500-523 in the following applications:

Formulation, Preparation, and Storage

Purification

Multi-step

Formulation

TBS (pH 8.0)

Preservative

0.9% Sodium Azide

Concentration

1.0 mg/ml

Shipping

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

Stability & Storage

Store at 4C. Do not freeze.

Background: Fc gamma RIIIA/CD16a

Fc gamma receptor IIIA (RIIIA), also called CD16a, is an activating natural killer (NK) cell receptor that binds the Fc portion of immunoglobulin G (IgG) antibodies and is responsible for eliciting a host defense against microbial pathogens (1). Fc gamma RIIIA/CD16a belongs to the Fc gamma RIII (CD16) subclass of Fc gamma receptors (1,2). The two other subclasses of receptors are Fc gamma RI (CD64) and Fc gamma RII (CD32) (1,2). The two form of Fc gamma RIII are Fc gamma RIIIA (CD16a) and Fc gamma RIIIB (CD16b), which are encoded by two different homologous genes, FCGR3A and FCGR3B, respectively (1-3). The human Fc gamma RIIIA protein is 254 amino acids (aa) in length with a theoretical molecular weight (MW) of 29 kDa (1,4,5). CD16a contains five glycosylation sites, two disulfide bonds, and two Ig-like C2 domains (4). Fc gamma RIIIA/CD16a is expressed as a transmembrane protein on NK cells and on a subset of monocytes, macrophages, CD4+ T cells, basophils, and mast cells (1-3). The soluble form of CD16 (sCD16) is often produced following exposure to inflammatory signals and protein shedding via metalloproteinases (3). Reduced sCD16 levels have been found in patients with multiple myeloma (3).

Activating NK cell receptor function has been harnessed for its potential in tumor immunotherapy (5). One immunotherapy strategy is using bi- and tri-specific NK cell engagers (BiKE and TriKE) to target the Fc gamma RIIIA/CD16a receptor with tumor-associated antigens to stimulate a cytotoxic response and mount an attack on tumor cells (5). CD16a is also capable of antibody dependent cellular cytotoxicity (ADCC) through recognition of antibodies bound to target cells (5-6). CD16-induced NK cell activation allows for NK co-receptor expression including stimulatory receptors like CD137 or inhibitory receptors like TIGIT and PD-1, which serve as additional regulatory checkpoints during ADCC (6). Therapeutic antibodies for cancer treatment like rituximab or trastuzumab can be recognized by Fc gamma RIIIA/CD16a to activate NK cell-mediated killing of tumor cells (5-6).

References

1. Fossati, G., Bucknall, R. C., & Edwards, S. W. (2001). Fcgamma receptors in autoimmune diseases. European Journal of Clinical Investigation, 31(9), 821-831. https://doi.org/10.1046/j.1365-2362.2001.00881.x

2. Patel, K. R., Roberts, J. T., & Barb, A. W. (2019). Multiple Variables at the Leukocyte Cell Surface Impact Fc gamma Receptor-Dependent Mechanisms. Frontiers in Immunology, 10, 223. https://doi.org/10.3389/fimmu.2019.00223

3. Moldovan, I., Galon, J., Maridonneau-Parini, I., Roman Roman, S., Mathiot, C., Fridman, W. H., & Sautes-Fridman, C. (1999). Regulation of production of soluble Fc gamma receptors type III in normal and pathological conditions. Immunology Letters, 68(1), 125-134. https://doi.org/10.1016/s0165-2478(99)00041-3

4. Uniprot (P08637)

5. Sivori, S., Pende, D., Quatrini, L., Pietra, G., Della Chiesa, M., Vacca, P., Tumino, N., Moretta, F., Mingari, M. C., Locatelli, F., & Moretta, L. (2021). NK cells and ILCs in tumor immunotherapy. Molecular Aspects of Medicine, 80, 100870. https://doi.org/10.1016/j.mam.2020.100870

6. Muntasell, A., Ochoa, M. C., Cordeiro, L., Berraondo, P., Lopez-Diaz de Cerio, A., Cabo, M., Lopez-Botet, M., & Melero, I. (2017). Targeting NK-cell checkpoints for cancer immunotherapy. Current Opinion in Immunology, 45, 73-81. https://doi.org/10.1016/j.coi.2017.01.003

Long Name

Fc gamma Receptor III A

Alternate Names

CD16a, FCGR3A, FcgRIIIA

Entrez Gene IDs

2214 (Human)

Gene Symbol

FCGR3A

Additional Fc gamma RIIIA/CD16a Products

Product Documents for Fc gamma RIIIA/CD16a Antibody (MEM-168)

Product Datasheets

Certificate of Analysis

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Product Specific Notices for Fc gamma RIIIA/CD16a Antibody (MEM-168)

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.

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