Journal article

In Vitro Studies Show that Sequence Variability Contributes to Marked Variation in Hepatitis B Virus Replication, Protein Expression, and Function Observed across Genotypes

Vitina Sozzi, Renae Walsh, Margaret Littlejohn, Danni Colledge, Kathy Jackson, Nadia Warner, Lilly Yuen, Stephen A Locarnini, Peter A Revill

JOURNAL OF VIROLOGY | AMER SOC MICROBIOLOGY | Published : 2016

Abstract

The hepatitis B virus (HBV) exists as 9 major genotypes (A to I), one minor strain (designated J) and multiple subtypes. Marked differences in HBV natural history, disease progression and treatment response are exhibited by many of these genotypes and subtypes. For example, HBV genotype C is associated with later hepatitis B e antigen (HBeAg) seroconversion and high rates of liver cancer compared to other HBV genotypes, whereas genotype A2 is rarely associated with HBeAg-negative disease or liver cancer. The reasons for these and other differences in HBV natural history are yet to be determined but could in part be due to sequence differences in the HBV genome that alter replicative capacity..

View full abstract