Product Description |
Recombinant Human Siglec-3/CD33 Protein is expressed from HEK293 with hFc tag at the C-Terminus.It contains Asp18-His259. |
Product Background |
Sialic-acid-binding immunoglobulin-like lectin (Siglec) that plays a role in mediating cell-cell interactions and in maintaining immune cells in a resting state.They are sialoadhesin/CD169/Siglec-1, CD22/Siglec-2, CD33/Siglec-3, Myelin-Associated Glycoprotein (MAG/Siglec-4a) and Siglecs 5 to 11. To date, no Siglec has been shown to recognized any cell surface ligand other than sialic acids, suggesting that interactions with glycans containing this carbohydrate are important in mediating the biological functions of Siglecs. |
Product Category |
Recombinant Protein / Antibody discovery / CAR-T targets |
Protein |
Siglec-3/CD33 |
Synonyms |
CD33 molecule; CD33; FLJ00391; gp67; Siglec3; Siglec-3; p67 |
Accession |
|
Species |
Human |
Biotinylated |
no |
Amino Acid Range |
Asp18-His259 |
Molecular Weight |
The protein has a predicted MW of 53.6 kDa. Due to glycosylation, the protein migrates to 68-80 kDa based on Bis-Tris PAGE result. |
Activity |
Immobilized Human Siglec-3, hFc Tag at 0.5ug/ml (100ul/well) on the plate. Dose response curve for Biotinylated Anti-Siglec-3 Antibody, hFc Tag with the EC50 of 21.8ng/ml determined by ELISA. See testing image for detail. |
Product Tag |
C-hFc |
Expression System |
HEK293 |
Purity |
> 95% as determined by Bis-Tris PAGE;> 95% as determined by HPLC |
Endotoxin |
Less than 1 EU per ug by the LAL method. |
Form |
Lyophilized |
Shipping |
Shipped at ambient temperature. |
Formulation |
Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. |
Reconstitution |
Dissolve the lyophilized protein in distilled water. It is recommended to resuspend at 0.5 mg/mL if the lyophilized powder is 100 ug or less, at 1mg/ml for 500ug or 1mg lyophilized powder. Do not mix by vortex or vigorous shaking. |
Stability And Storage |
-20 to -80°C for 12 months as supplied from date of receipt.；-80°C for 3 months after reconstitution.；Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles. |
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Immobilized Human Siglec-3, hFc Tag at 0.5ug/ml (100ul/well) on the plate. Dose response curve for Biotinylated Anti-Siglec-3 Antibody, hFc Tag with the EC50 of 21.8ng/ml determined by ELISA. |
|
|
Human Siglec-3 on Bis-Tris PAGE under reduced conditions. The purity is greater than 95%. |
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The purity of Human Siglec-3 is greater than 95% as determined by SEC-HPLC. |
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