Hepatitis C virus expressing reporter tagged NS5A protein
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United States of America Patent
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Jul 8, 2014
Grant Date -
Jan 5, 2012
app pub date -
Oct 5, 2009
filing date -
Oct 3, 2008
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Abstract
Hepatitis C reporter viruses containing Core through NS2 of prototype isolates of all major HCV genotypes and the remaining genes of isolate JFH1, by insertion of reporter genes in domain III of HCV NS5A were developed. A deletion upstream of the inserted reporter gene sequence conferred favorable growth kinetics in Huh7.5 cells to these viruses. These reporter viruses can be used for high throughput analysis of drug and vaccine candidates as well as patient samples. JFH1-based intergenotypic recombinants with genotype specific homotypic 5′UTR, or heterotypic 5′UTR (either of genotype 1a (strain H77) or of genotype 3a (strain S52)) were also developed. The present inventors additionally developed J6/JFH1 recombinants with the 5′UTR of genotypes 1-6. These recombinants with different 5′UTRs are a useful to study the function of the 5′UTR in a genotype specific manner.
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