Recombinant Human Siglec-2/CD22 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Asp20-Arg687.
Pureté
> 95 % as determined by Tris-Bis PAGE,> 95 % as determined by HPLC
Stérilité
0.22 μm filtered
niveau d'endotoxine
Less than 1EU per μg by the LAL method.
Biological Activity Comment
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. See testing image for detail.
CD22
Origine: Humain
Hôte: HEK-293 Cells
Recombinant
The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.
ELISA
CD22
Origine: Humain
Hôte: Mammalian Cells
Recombinant
The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.
CD22
Origine: Humain
Hôte: Mammalian Cells
Recombinant
The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.
CD22
Origine: Humain
Hôte: Human Cells
Recombinant
>95 % as determined by reducing SDS-PAGE.
Active
Restrictions
For Research Use only
Format
Lyophilized
Reconstitution
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in distilled water.
Buffer
Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 8 % trehalose is added as protectant before lyophilization.
Stock
-20 °C,-80 °C
Stockage commentaire
-20 to -80°C for 12 months as supplied from date of receipt., -80°C for 3-6 months after reconstitution., 2-8°C for 2-7 days after reconstitution., Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
CD22, or cluster of differentiation-22, is a molecule belonging to the SIGLEC family of lectins. It is found on the surface of mature B cells and to a lesser extent on some immature B cells. CD22 a member of the immunoglobulin superfamily. CD22 functions as an inhibitory receptor for B cell receptor (BCR) signaling. It is also involved in the B cell trafficking to Peyer's patches in mice.
Poids moléculaire
76.2 kDa. Due to glycosylation, the protein migrates to 100-120 kDa based on Tris-Bis PAGE result.