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Your Position: Home > Recombinant Proteins > Recombinant Human Fc gamma RIIIB / CD16b / FCGR3B (NA2) Protein

Human Fc gamma RIIIB / CD16b (NA2) Protein

  • Synonym
    FCGR3B,CD16B,FCG3B,FCGR3,FCG3,IGFR3
  • Source
    Human Fc gamma RIIIB / CD16b (NA2), His Tag (CDB-H5222) is expressed from human 293 cells (HEK293). It contains AA Gly 17 - Ser 200 (Accession # O75015-1). The NA2 form of the CD16B (CDB-H5222) differ with the NA1 form of CD16B in AA36, 65, 82, and 106. The NA2 form carries S36, S65, N82, and I106, while the NA1 form (CDB-H82E4 / CDB-H5227) carries R36, N65, D82, and V106.
    Predicted N-terminus: Gly 17
  • Molecular Characterization
    CD16b(Gly 17 - Ser 200) O75015-1

    This protein carries a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 22.7 kDa. The protein migrates as 38-50 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >95% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    No activity loss is observed after storage at:

    1. 4-8°C for 12 months in lyophilized state;

    2. -70°C for 3 months under sterile conditions after reconstitution.

SDS-PAGE
Human Fc gamma RIIIB / CD16b (NA2), His Tag (Cat. No. CDB-H5222) SDS-PAGE gel

Human Fc gamma RIIIB / CD16b (NA2), His Tag on SDS-PAGE  under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

  • Background
    CD16 is a low affinity Fc receptor, and has been identified as Fc receptors FcγRIIIa (CD16a) and FcγRIIIb (CD16b). These receptors bind to the Fc portion of IgG antibodies. CD16 encoded by two different highly homologous genes in a cell type-specific manner.CD16 is found on the surface of natural killer cells, neutrophil polymorphonuclear leukocytes, monocytes and macrophages. CD16B is also kown as FCGR3B and FCG3B, is expressed specifically by polymorphonuclear leukocytes (neutrophils) and stimulated eosinophils. CD16B is the low affinity receptor for the Fc region of immunoglobulins gamma. FCGR3B binds complexed or aggregated IgG and also monomeric IgG. Contrary to III-A, FCG3B is not capable to mediate antibody-dependent cytotoxicity and phagocytosis. CD16B may serve as a trap for immune complexes in the peripheral circulation which does not activate neutrophils.
  • References
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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