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Molecular biology of hepatitis B virus e antigen
Author(s) -
OU JINGHSIUNG
Publication year - 1997
Publication title -
journal of gastroenterology and hepatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.214
H-Index - 130
eISSN - 1440-1746
pISSN - 0815-9319
DOI - 10.1111/j.1440-1746.1997.tb00499.x
Subject(s) - medicine , virology , hepatitis b antigens , antigen , hepatitis b virus , virus , immunology
ABSTRACT Hepatitis B virus (HBV) e antigen (HBeAg) was discovered in 1972 as one of the serological markers of HBV infection. Although 25 years have passed since its initial discovery, the function of this antigen in the life cycle of HBV has remained elusive. Mutations in the HBV genome that prevent the expression of HBeAg do not abolish the replication of HBV, indicating that this antigen is not essential for HBV replication. In contrast, the conservation of the HBeAg gene in the genomes of related animal viruses, including the distantly related duck HBV, argues for an important function of this antigen. The purpose of the present article is to review the molecular biology of HBeAg and to examine its possible functions in the life cycle of HBV.

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