ArticleInternational journal of biological sciences2018
Adapted HCV JFH1 variant is capable of accommodating a large foreign gene insert and allows lower level HCV replication and viral production.
Article in International journal of biological sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Infectious HCV carrying reporter genes have further applications in understanding the HCV life cycle including replication, viral assembly and release. In this study, a full-length 3039bp LacZ gene was inserted into the derivative of JFH1-AM120 to develop an additional reporter virus. The results showed that the recombinant reporter virus JFH1-AM120-LacZ can replicate and produce lower titers of infectious virus. However, insertion of the LacZ gene in the C-terminal region of the NS5A in HCV JFH1-AM120-LacZ decreased viral replication and dramatically impaired the production of infectious viral particles. Moreover, the JFH1-AM120-LacZ reporter virus lost the LacZ gene after serial passage. Nevertheless, the JFH1-AM120-LacZ reporter virus displayed the entire life cycle of HCV, from replication to production of infectious virus, in Huh7.5 cells. This study demonstrates that the NS5A region of HCV JFH1-AM120 has the capacity to accommodate large foreign genes up to 3,039 bp and suggests that other relatively large gene inserts can be accommodated at this site.
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