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CD32B/Fcgr2b Protein, Cynomolgus, Recombinant (His & Avi), Biotinylated is expressed in HEK293 mammalian cells with His and Avi tag. The predicted molecular weight is 23.5 kDa and the accession number is Q8SPW3.

| Pack Size | Price | USA Stock | Global Stock | Quantity |
|---|---|---|---|---|
| 5 μg | $109 | 7-10 days | 7-10 days | |
| 10 μg | $178 | 7-10 days | 7-10 days | |
| 20 μg | $296 | - | In Stock | |
| 50 μg | $478 | 7-10 days | 7-10 days | |
| 100 μg | $690 | 7-10 days | 7-10 days | |
| 200 μg | $1,180 | 7-10 days | 7-10 days | |
| 500 μg | $2,380 | 7-10 days | 7-10 days |
| Biological Activity | Immobilized Cynomolgus CD32B/Fcgr2b Protein (His & AVI Tag), Biotinylated at 2 μg/mL (100 μL/well) can bind Human IgG2 Protein (257 Ser/Ala) , the EC50 is 4-36 ng/mL. ![]() |
| Description | CD32B/Fcgr2b Protein, Cynomolgus, Recombinant (His & Avi), Biotinylated is expressed in HEK293 mammalian cells with His and Avi tag. The predicted molecular weight is 23.5 kDa and the accession number is Q8SPW3. |
| Species | Cynomolgus |
| Expression System | HEK293 Cells |
| Tag | His, Avi |
| Accession Number | Q8SPW3 |
| Synonyms | Fc fragment of IgG, low affinity IIb, receptor (CD32) |
| Construction | A DNA sequence encoding the Cynomolgus (Macaca fascicularis) CD32b (AAL92097.1) extracellular domain (Met 1-Gly 220) was fused with a c-terminal polyhistidine tagged AVI tag at the C-terminus. The expressed protein was biotinylated in vivo by the Biotin-Protein ligase (BirA enzyme) which is co-expressed. Predicted N terminal: Ala 45 |
| Protein Purity | > 97 % as determined by SDS-PAGE ![]() |
| Molecular Weight | 23.5 kDa (predicted); 34 kDa (reducing condition, due to glycosylation) |
| Endotoxin | < 1.0 EU/μg of the protein as determined by the LAL method. |
| Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization. |
| Reconstitution | Reconstituted with sterile deionized water to 0.25 mg/mL. Reconstitution conditions may vary depending on the lot. |
| Stability & Storage | It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
| Shipping | In general, lyophilized powders are shipped with blue ice, while solutions are shipped with dry ice. |
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