Recombinant Human/Cynomolgus CD28(Asn19-Pro152) Protein, N-6*His-tagged

Specification :
| Source : HEK293 | Species : Human/Cynomolgus | Tag : His | Form : Lyophilized from a 0.2 μm filtered solution of 20mM Tris, 150mM NaCl, pH 8.0. | Molecular Mass : The recombinant Human/Cynomolgus CD28 Protein has a predicted molecular mass of 16.7kDa, it migrates with an apparent molecular mass of 30-40kDa under reducing conditions. | AA Sequence : Asn19-Pro152 | Endotoxin : | Purity : Greater than 95% as determined by reducing SDS-PAGE. | Storage : Samples are stable for up to twelve months from date of receipt at -20°C to -80°C. Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles. | Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.25 mg/ml. Centrifuge the vial at 4°C before opening to recover the entire contents. | Shipping : In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.