HBsAg
Sign in to savethumb|The genome organisation of HBV; the genes overlap. ORF S, in green, encodes HBsAg. thumb|HBsAg under a transmission electron microscope: the protein self assembles into [[virus-like particles]] HBsAg (also known as the Australia antigen) is the surface antigen of the hepatitis B virus (HBV). Its presence in blood indicates existing hepatitis B infection.
Key facts
- Nonhuman protein.UniProt
- Q9QAB7
- Nonhuman protein.Name
- Large envelope protein
- Nonhuman protein.Organism
- Hepatitis B virus genotype B2 (isolate Vietnam/9873/1997)
- Nonhuman protein.Symbol
- S
via Wikipedia infobox
Article
6 sectionsContents
- Structure and function
- Immunoassay
- Applications
- History
- See also
- References
thumb|The genome organisation of HBV; the genes overlap. ORF S, in green, encodes HBsAg. thumb|HBsAg under a transmission electron microscope: the protein self assembles into [[virus-like particles]] HBsAg (also known as the Australia antigen) is the surface antigen of the hepatitis B virus (HBV). Its presence in blood indicates existing hepatitis B infection.
==Structure and function== The viral envelope of an 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.