Description
Accession
P20273
Source
DNA sequence encoding Human Siglec-2/CD22 including a C-His tag was expressed in HEK293 Cells.
Molecular weight
Recombinant Human Siglec-2/CD22 is a protein consisting of amino acid residues [Asp20-Arg687] ,The protein has a predicted MW of 76.2 kDa. Due to glycosylation, the protein migrates to 100-120 kDa based on Tris-Bis PAGE result..
Purity
>95%, as determined by SDS-PAGE and HPLC
Biological Activity
see methods section
Endotoxin
Endotoxin content was assayed using a LAL gel clot method. Endotoxin level was found to be less than 0.1 ng/µg(1EU/µg).
Presentation
Recombinant Human Siglec-2/CD22 was lyophilized from 0.2 µm filtered PBS solution pH7.4
Reconstitution
Centrifuge vial to ensure maximal product extraction, recommended:20sec, 5K RPM
Storage
The lyophilized protein is stable for at least 2 years from date of receipt at -20° C.
Usage
This product is for research purposes only.It may not be used for therapeutics or diagnostic purposes.
Biological Process
Methods
Human Siglec-2/CD22 Protein Tris-Bis PAGE
- Human Siglec-2/CD22 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.
Human Siglec-2/CD22 Protein SEC-HPLC
- The purity of Human Siglec-2/CD22 is greater than 95% as determined by SEC-HPLC.
Human Siglec-2/CD22 Protein ELISA Data
- Immobilized Human Siglec-2, His Tag at 0.5μg/ml (100μl/well) on the plate. Dose response curve for Anti-Siglec-2 Antibody, hFc Tag with the EC50 of 19.1ng/ml determined by ELISA.
