FIG. 1.

HBV amino acid alignment of GenBank sequences. Sequences, indicated with their accession numbers, were grouped according to their genotypes. Genotype G (strain FR1) is a recently discovered genotype (23). On top, the overlapping HBsAg ORF is shown. The HBpol numbering is genotype dependent. Numbering for each genotype is indicated. Positions of previously described drug resistance are indicated with an exclamation point. Amino acids are indicated with the single-letter nomenclature; X, translational stop.