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Recombinant Human CD16a/FCGR3A Protein (176 Val, His Tag)(Active)
SKU: PKSH030288-100
Recombinant Human CD16a/FCGR3A Protein (176 Val, His Tag)(Active)
| SKU # | PKSH030288 |
| Expression Host | CHO Cells |
Description
| Synonyms | CD16, CD16A, CD16a, CD16a Antigen, FCG3, FCGR3, FCGR3A, Fc-Gamma RIII, Fc-Gamma RIII-Alpha, Fc-gamma RIIIa, FcR-10, FcRIII, FcRIIIa, IGFR3, IgG Fc Receptor III-2, Low Affinity Immunoglobulin Gamma Fc Region Receptor III-A |
| Species | Human |
| Expression Host | CHO Cells |
| Sequence | Met 1-Gln 208 |
| Accession | AAH17865.1 |
| Calculated Molecular Weight | 23.3 kDa |
| Observed Molecular Weight | 40-45 kDa |
| Tag | C-His |
| Bio-activity | Immobilized human CD16a-His at 10 μg/ml (100 μl/well) can bind recombinant human IgG1 (Fc). The EC50 of human IgG1 (Fc) is 0.40-0.92 μg/ml. |
Properties
| Purity | > 95 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method. |
| Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
| Formulation | Lyophilized from sterile PBS, pH 7.2 Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
Background
The Fc receptor with low affinity for IgG (FCGR3, or CD16) is encoded by 2 nearly identical genes, FCGR3A and FCGR3B, resulting in tissue-specific expression of alternative membrane-anchored isoforms. FCGR3A, it is also known as CD16a, encodes a transmembrane protein expressed on activated monocytes/macrophages, natural killer (NK) cells, and a subset of T cells. CD16a / FCGR3A is a receptor expressed on NK cells that facilitates antibody dependent cellular cytotoxicity (ADCC) by binding to the Fc portion of various antibodies. CD16a / FCGR3A also has a broader function. CD16a / FCGR3A is directly involved in the lysis of some virus-infected cells and tumor cells by NK cells, independent of antibody binding. Cross-linking of CD16a / FCGR3A on NK cells resulted in increased intracellular Ca2+ levels and a cascade of biochemical events similar to those activated by the T cell receptor. CD16a / FCGR3A on human NK cells is a lysis receptor that mediates the direct killing of some virus infected and tumor cells, independent of antibody ligation.