FIG. 1.
A diagrammatic representation of the HBV genome. The inner circle represents the virion genomic DNA that is packaged within viral particles in the cytoplasm of infected cells, and the dashes indicate the region of the genome which is incompletely synthesized. The thick arrows represent open reading frames corresponding to core, envelope (surface antigen), polymerase (pol), and HBx proteins. The thin lines represent HBV RNAs.