Summary: Cat.No.: CD33-234H Product Overview: Recombinant Human CD33 (AAH28152.1) (Met1-His259), fused with a C-terminal polyhistidine tag, was produced in Human Cells. Source: Human Cells Species: Human Tag: His Predicted N Terminal: Asp 18 Form: Lyophilized from sterile PBS, pH 7.4, 10% glycerol.Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Molecular Mass: The recombinant human CD33 comprises 253 amino acids and has a predicted molecular mass of 28.2 kDa. The apparent molecular mass of the protein is approximately 40-46 kDa in SDS-PAGE under reducing conditions. Endotoxin: < 1.0 eu per μg of the protein as determined by the LAL method. Purity: >90 % as determined by SDS-PAGE