Active Recombinant Human CD28H protein, His-tagged

• Cat.No.: CD28H-3051H
• Product Overview: Recombinant Human CD28H protein(Leu 23-Gly 150), fused with His tag, was expressed in HEK293.

Specification

• Species: Human
• Source: HEK293
• Tag: His
• Protein Length: Leu 23-Gly 150
• Form: Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.
• Bio-activity: Immobilized Human CD28H, His Tag at 5 μg/mL (100 μL/well) can bind Biotinylated Human B7-H7, Fc Tag, Avi Tag with a linear range of 10-156 ng/mL.Immobilized Human CD28H, His Tag at 5 μg/mL (100 μL/well) can bind Human B7-H7, Fc Tag with a linear range of 1-78 ng/mL.
• Molecular Mass: This protein carries a polyhistidine tag at the C-terminus.The protein has a calculated MW of 15.9 kDa. The protein migrates as 22-32 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
• Endotoxin: Less than 1.0 EU per μg by the LAL method.
• Purity: >90% as determined by SDS-PAGE.
• 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.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.