Phylogenetic analysis of hepatitis B virus genome isolated from Korean patient serum

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Phylogenetic analysis of hepatitis B virus genome isolated from Korean patient serum
Seon-Young Kim; Hyen Sam Kang; Yeon Soo Kim
Bibliographic Citation
Journal of Microbiology and Biotechnology, vol. 10, no. 6, pp. 823-828
Publication Year
The complete nucleotide sequence of hepatitis B virus DNA isolated from Korean patient serum was determined and characterized, and its phylogenetic relation was then investigated. The viral genome was 3,215 base pairs long and included four well known open reading frames (i.e. surface antigens, core antigens, X protein, and DNA polymerase). The sequence of the surface antigen showed that the HBV genome under investigation, designated HBV315, was characteristic of subtype adr. A phylogenetic analysis using the total genome sequence revealed that HBV315 was grouped into genomic group C together with isolates from Japan, China, Thailand, Polynesia, and New Caledonia. The mean percent similarity between HBV315 and other HBV isolates in genomic group C was 97.25%, and that with other genomic groups ranged from 86.16% to 91.25%. The predicted amino acid sequences of HBV315 were compared with two closely related subtype adr isolates, M38636 and D12980. The results showed that the X gene product was identical in the three strains, while there were significant amino acid sequence differences between HBV315 and M38636 in the Pre-S1 and Pre-S2 regions.
genomic group CHBVphylogenetic analysissubtype adr
Korea Soc-Assoc-Inst
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