Recombinant HBV Surface Antigen-preS2

名称：Recombinant HBV Surface Antigen-preS2

货号：UN367

规格：10μg/50μg/100μg/500μg/1mg

纯度：>98%

系统：E.coli.

产品详情

 Recombinant HBV Surface Antigen-preS2

Hepatitis B virus (HBV) is a human pathogen, causing serious liver disease. The HBV surface protein antigens (HBsAg) are comprised of three carboxyl co terminal HBs proteins termed large (LHBs), middle (MHBs) and small (SHBs, also called major) protein. LHBs and MHBs also share the highly hydrophobic, repetitive, membrane spanning S domain. In addition, MHBs has a 55 amino acid region called preS2. Recombinant HBV Surface Antigen-preS2 is a 5.7kDa protein consisting of 55 amino acid residues.

Application:

1. Immunochromatography;

2. Preparing antibodies for HBsAg-preS2;

3. Positive control for ELISA.

名称缩写/Abbreviation：

rHBsAg-preS2

货号/Item No.：

UN367

别名/Synonyms：

Middle envelope protein, MHB, M-HBsAg

表达系统/Source：

Expressed in E. coli.

分子量/Molecular Weight：

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

SCI的检索号/Accession #：

P03140 Met120- Asn174

蛋白序列/A.A. Sequence：

MQWNSTTFHQALLDPKVRGLYFPAGGSSSGTVNPVPTTASPISSIFSRTGDPAPN

纯度/Purity：

＞98% by SDS-PAGE or ＞90% by HPLC.

配方/Formulation：

Lyophilized from a 0.2 μm filtered concentrated solution in 20 mM PB, with 150 mM NaCl, pH 7.4.

外观/Appearance：

Sterile filtered White lyophilized (freeze-dried) powder.

内毒素/Endotoxin：

< 0.1 EU/μg rHBsAg-preS2 protein as determined by LAL method.

复溶/Reconstitution：

Before use this product, please read the direction below carefully. This vial must be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in a sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃. Further dilutions should be made in appropriate buffered solutions.

稳定性和存储/Stability & Storage：

For long term storage, the product should be stored ≤ -20℃. Please avoid repeated freeze-thaw cycles after reconstitution. 36 months from date of receipt, -20 to -70℃ as supplied. 1 month, 2 to 8℃ under sterile conditions after reconstitution. 3 months, -20 to -70℃ under sterile conditions after reconstitution.

* THIS PRODUCT IS FOR RESEARCH, LABORATORY AND EVALUATION PURPOSE ONLY.