申请人:——
公开号:US20030148267A1
公开(公告)日:2003-08-07
The invention includes methods of identifying compounds that increase the mutation rate of hepatitis C virus. The invention can be used to screen libraries of test compounds, including both nucleoside analogs and non-nucleoside analogs. The methods include: 1) contacting a test cell with a candidate compound, wherein the test cell contains a nucleic acid molecule comprising an infectious hepatitis C viral genome, a ribozyme, and an inducible promoter operably linked to the first and second nucleotide sequences, the ribozyme being configured to remove a 3′ sequence unnecessary for replication of the infectious hepatitis C viral genome from a transcript initiated by the inducible promote; and 2) the detection of an increase in hepatitis C virus quasispecies produced by the cell in the presence of the candidate compound. Detection of an increase in quasispecies can be accomplished by, e.g., sequencing HCV nucleic acid molecules isolated from the test cell.
本发明包括鉴定可提高丙型肝炎病毒变异率的化合物的方法。本发明可用于筛选试验化合物库,包括核苷类似物和非核苷类似物。方法包括1)将候选化合物与试验细胞接触,其中试验细胞含有核酸分子,该核酸分子包含传染性丙型肝炎病毒基因组、核糖核酸酶和与第一和第二核苷酸序列可操作连接的可诱导启动子,核糖核酸酶被配置为从由可诱导启动子启动的转录本中移除复制传染性丙型肝炎病毒基因组所必需的 3′序列;2)检测细胞在候选化合物存在下产生的丙型肝炎病毒准种的增加。例如,可通过对从试验细胞中分离出的丙型肝炎病毒核酸分子进行测序来检测准种的增加。