Abstract
Hepatitis C virus (HCV), exhibits considerable genetic diversity, but presents a relatively well conserved 5' noncoding region (5' NCR) among all genotypes. In this study, the structural features and translational efficiency of the HCV 5' NCR sequences were analyzed using the programs RNAfold, RNAshapes and RNApdist and with a bicistronic dual luciferase expression system, respectively. RNA structure prediction software indicated that base substitutions will alter potentially the 5' NCR structure. The heterogeneous sequence observed on 5' NCR led to important changes in their translation efficiency in different cell culture lines. Interactions of the viral RNA with cellular transacting factors may vary according to the cell type and viral genome polymorphisms that may result in the translational efficiency observed.
Published Version
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