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Your Position: Home > Protein > Fc gamma RIIIB / CD16b (NA2) > CDB-H5294

Human Fc gamma RIIIB / CD16b (NA2) Protein, SUMO,His Tag (MALS & BLI-verified)

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  • Synonym
    Fc gamma RIIIB,CD16b (NA2),FCGR3B,CD16B,FCG3B,FCGR3,FCG3,IGFR3
  • Source
    Human CD16b (NA2), SUMO,His Tag (CDB-H5294) is expressed from human 293 cells (HEK293). It contains AA Gly 17 - Ser 200 (Accession # O75015-1). The NA1 form of the CD16b differ with the NA2 form of CD16b in AA36, 65, 82, and 106. The NA1 form carries R36, N65, D82, and V106, while the NA2 form carries S36, S65, N82, and I106.
    Predicted N-terminus: Gly
  • Molecular Characterization
    Online(Gly 17 - Ser 200) O75015-1

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

    The protein has a calculated MW of 33.5 kDa. The protein migrates as 45-60 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.

    >90% as determined by SEC-MALS.

  • 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.

    This product is stable after storage at:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 12 months under sterile conditions after reconstitution.
SDS-PAGE
Human CD16b (NA2), SUMO,His Tag (Cat. No. CDB-H5294) SDS-PAGE gel

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

SEC-MALS
Human CD16b (NA2), SUMO,His Tag (Cat. No. ) MALS images

The purity of Human CD16b (NA2), SUMO,His Tag (Cat. No. CDB-H5294) is more than 90% and the molecular weight of this protein is around 40-55 kDa verified by SEC-MALS.

Bioactivity-BLI
Human_FcRn_Heterodimer_Protein_Bli

Loaded Human CD16b (NA2), SUMO,His Tag (Cat. No. CDB-H5294) on HIS1K Biosensor, can bind Rituximab with an affinity constant of 4.8 μM as determined in BLI assay (ForteBio Octet Red96e) (QC tested).

  • 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.
  • Clinical and Translational Updates
      
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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