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Recombinant Biotinylated Cynomolgus Fc gamma RIIB / CD32b Protein, His,Avitag™ (SPR & BLI & MALS verified), 200 µg  

Recombinant Biotinylated Cynomolgus Fc gamma RIIB / CD32b Protein, His,Avitag™ (SPR & BLI & MALS verified), 200 µg

Recombinant Biotinylated Cynomolgus Fc gamma RIIB / CD32b Protein, AA Ala 46 - Pro 224, expressed from human 293 cells, His,Avitag™ (SPR & BLI & MALS verified)

Synonym: Recombinant, cynomolgus, protein, FCGR2B, CD32b, CD32, FCG2, IGFR2, CDw32

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Availability: within 7 days

1 694,00 €

Receptors for the Fc region of IgG (Fc γ R) are members of the Ig superfamily that function in the activation or inhibition of immune responses. Three classes of human Fc γ Rs: RI (CD64), RII (CD32), and RIII (CD16), which generate multiple isoforms, are recognized. There are three genes for human Fcγ RII /CD32 (A, B, and C) and one for mouse Fcγ RII B (CD32B). CD32 is a low affinity receptor for IgG. Low affinity immunoglobulin gamma Fc region receptor II-b (FCGR2B) is also known as CD32b, FCG2, IGFR2. CD32B is expressed on B cells and myeloid dendritic cells. Ligation of CD32B on B cells downregulates antibody production and may, in some circumstances, promote apoptosis. Co-ligation of CD32B on dendritic cells inhibits maturation and blocks cell activation. CD32B may also be a target for monoclonal antibody therapy for malignancies.

Recombinant Biotinylated Cynomolgus CD32b protein, His,Avitag (CDB-C82E4) is expressed from human 293 cells (HEK293). It contains AA Ala 46 - Pro 224 (Accession # Q8SPW3-1).
Predicted N-terminus: Ala 46

Molecular Characterization
This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag.
The protein has a calculated MW of 23.6 kDa. The protein migrates as 30-35 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.

Biotin:Protein Ratio
Passed as determined by the HABA assay / binding ELISA.

Less than 1.0 EU per μg by the LAL method.

>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.

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

Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

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:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 12 months under sterile conditions after reconstitution.

Please refer to product data sheet.

Clinical and Translational Updates

(1) "Homogeneously high expression of CD32b makes it a potential target for CAR-T therapy for chronic lymphocytic leukemia"
Wang, Sun, Zuo et al
J Hematol Oncol (2021) 14 (1), 149
(2) "FcγRIIb Expression Is Decreased on Naive and Marginal Zone-Like B Cells From Females With Multiple Sclerosis"
Trend, Leffler, Teige et al
Front Immunol (2020) 11, 614492
(3) "DPP4/CD32b/NF-κB Circuit: A Novel Druggable Target for Inhibiting CRP-Driven Diabetic Nephropathy"
Tang, Zhang, Hung et al
Mol Ther (2021) 29 (1), 365-375
Showing 1-3 of 45 papers.

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