HBV type 2 PreS2 (aa 1 - 445) [BSA], recombinant protein from E. coli
C-terminal 6xHis tagged PreS2-HBsAg (HBV/Genotype B) protein (a.a. 1-445)
> 95%, based on SDS PAGE
Each vial contains 100 μg of lyophilized protein in PBS.
2-8°C short term, -20°C long term
Hepatitis B virus, abbreviated HBV, is a species of the genus Orthohepadnavirus, which is likewise a part of the Hepadnaviridae family of viruses. This virus causes the disease hepatitis B.
HBsAg is the surface antigen of the hepatitis B virus (HBV). It indicates current hepatitis B infection.The viral envelope of enveloped virus has different surface proteins from the rest of the virus which act as antigens. These antigens are recognized by antibody proteins that bind specifically to one of these surface proteins.The HBsAg gene is one long open reading frame but contains three in frame "start" (ATG) codons that divide the gene into three sections, pre-S1, pre-S2, and S. Because of the multiple start codons, polypeptides of three different sizes called large, middle, and small (pre-S1 + pre-S2 + S, pre-S2 + S, or S) are produced. The function of the protein coded for by gene X is not fully understood.
Hepatitis B PreS2-HBsA; Hepatitis B Virus PreS2-HBsA; Hepatitis B virus; HBV; HBV PreS2-HBsA; S; Hepadnaviridae; Orthohepadnavirus