作者: F Imazeki , M Omata , M Ohto
DOI: 10.1128/JVI.64.11.5594-5599.1990
关键词:
摘要: To investigate the geographical divergence of delta virus RNA sequences, 868 nucleotides (nt), including antigen-coding region, were determined in isolates from two Japanese patients, M and S, by polymerase chain reaction direct sequencing compared with three previously reported nucleotide sequences. The sequence obtained for hepatitis patient was approximately 92% identical to sequences other strains virus, whereas S 81% sequenced strains. This suggests that agent Japan has a heterogeneous origin is most divergent isolate yet analyzed. study evolution rate RNA, viral 3 4 years apart each patients also sequenced. It estimated substitution 0.57 x 10(-3) nt per site year 0.64 antigen gene.