Recombinant Human/Cynomolgus/Rhesus macaque CD28 protein, His-tagged

For long term storage, the product should be stored at lyophilized state at -20 centigrade or lower.<br />Please avoid repeated freeze-thaw cycles.<br />This product is stable after storage at:<br />-20 centigrade to -70 centigrade for 12 months in lyophilized state-<br />-70 centigrade for 3 months under sterile conditions after reconstitution.