分子別名（Synonym）
CD33,SIGLEC3,gp67
表達區間及表達系統（Source）
Human Siglec-3 (R119G), Fc Tag (CD3-H5254) is expressed from human 293 cells (HEK293). It contains AA Asp 18 - His 259
蛋白結構（Molecular Characterization）
This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 53.1 kDa. The protein migrates as 64-70 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
內毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
純度（Purity）
>95% as determined by SDS-PAGE.
制劑（Formulation）
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, 25 mM Arginine, 150 mM NaCl, pH7.5. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
重構方法（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.
存儲（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:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
電泳（SDS-PAGE）
Human Siglec-3 (R119G), Fc 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%.
活性（Bioactivity）-ELISA
Immobilized Human Siglec-3 (R119G), Fc Tag (Cat. No. CD3-H5254) at 5 μg/mL (100 μL/well) can bind Anti-Siglec-3 Antibody, Human IgG1 with a linear range of 0.3-2 ng/mL (QC tested).