Creative BioMart provides quality recombinant proteins, diagnostic antibodies and antigens, diagnostic enzymes and pharmaceutical enzymes to the research community of biology, clinical research, molecular diagnostics and biopharmaceutical drug development.Avoid repeated freeze-thaw cycles. No activity loss was observed after storage at: 4-8 centigrade for 1 year in lyophilized state, 4-8 centigrade for 1 month under sterile conditions after reconstitution, -20 centigrade to -70 centigrade for 3 months under sterile conditions after reconstitution.http://www.creativebiomart.net/description_388467_12.htm