产品名称Recombinant HBV Surface Antigen-preS2

来源种属Escherichia coli.

纯化>95% by SDS-PAGE and HPLC analyses.

内毒素Less than 1 EU/ugof rHBsAg-preS2 as determined by LAL method.

计算分子量Approximately 5.7 kDa, a single non-glycosylated polypeptide chain containing 55 amino acids.

序列MQWNSTTFHQ ALLDPKVRGL YFPAGGSSSG TVNPVPTTAS PISSIFSRTG DPAPN

配方Lyophilized from a 0.2 μm filtered concentrated solution in 20mM PB, pH 7.4, 50mM NaCl.

保存Use a manual defrost freezer and avoid repeated freeze-thaw cycles. - A minimum of 12 months from date of receipt, when stored at ≤-20 ˚C as supplied. - 1 month, 2 to 8 ˚C under sterile conditions after reconstitution. - 3 months, -20 to -70 ˚C under sterile conditions after reconstitution.