Key Product Details

Species Reactivity

Human

Applications

Blockade of Receptor-ligand Interaction, Western Blot

Label

CoraFluor 1

Antibody Source

Polyclonal Goat IgG

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

View all Fc gamma RIII (CD16) Antibodies »

Product Specifications

Immunogen

Mouse myeloma cell line NS0-derived recombinant human Fc gamma RIIIB (R&D Systems, Catalog # 1597-FC)
Thr20-Gln208
Accession # O75015

Specificity

Detects human Fc gamma RIIIA/B (CD16) in direct ELISAs and Western blots. In these formats, approximately 5% cross‑reactivity with recombinant human Fc gamma RIIA is observed and less than 2% cross-reactivity with recombinant mouse CD16 is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Applications for Fc gamma RIII (CD16) Antibody [CoraFluor™ 1]

Application
Recommended Usage

Blockade of Receptor-ligand Interaction

Optimal dilutions of this antibody should be experimentally determined.

Western Blot

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Formulation

PBS

Preservative

No Preservative

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

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

Stability & Storage

Store at 4C in the dark. Do not freeze.

Background: Fc gamma RIII (CD16)

Fc gamma receptor III (RIII), also called CD16, 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 RIII (CD16) is one of three subclasses of Fc gamma receptors which includes Fc gamma RI (CD64) and Fc gamma RII (CD32) (1,2). The two forms 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, while human Fc gamma RIIIB protein is 233 aa long with a calculated MW of 26 kDa (1,4,5). Each protein contains between five to six glycosylation sites (1,4,5).

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). Fc gamma RIIIB/CD16b is primarily expressed on neutrophils as a glycosylphosphatidylinositol (GPI)-anchored protein but is also expressed on a subset of basophils and can be induced on eosinophils (1-3). The soluble form of CD16 (sCD16) which 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 (6). 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 (6). CD16a is also capable of antibody dependent cellular cytotoxicity (ADCC) through recognition of antibodies bound to target cells (6-7). 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 (7). 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 (6-7).

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. Uniprot (O75015)

6. 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

7. 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

Alternate Names

FcgRIII

Gene Symbol

FCGR3B

Additional Fc gamma RIII (CD16) Products

Product Documents for Fc gamma RIII (CD16) Antibody [CoraFluor™ 1]

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Download SDS

Product Specific Notices for Fc gamma RIII (CD16) Antibody [CoraFluor™ 1]

CoraFluor (TM) is a trademark of Bio-Techne Corp. Sold for research purposes only under agreement from Massachusetts General Hospital. US patent 2022/0025254

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.

Privacy and Cookie Policy
Site Map
© Copyright 2024 Bio-Techne. All Rights Reserved.