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KMID : 0545120050150030660
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Journal of Microbiology and Biotechnology
2005 Volume.15 No. 3 p.660 ~ p.664
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Analysis of In Vivo Interaction of HCV NS3 Protein and Specific RNA Aptamer with Yeast Three-Hybrid System
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Hwang BH
Lee SW
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Abstract
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We have previously isolated specific RNA aptamers with high affinity against the helicase domain of hepatitis C virus (HCV) nonstructural protein 3 (NS3). The RNA aptamers competitively and efficiently inhibited the helicase activity, partially impeding HCV replicon replication in human hepatocarcinoma cells. In this study, the RNA aptamers were tested for binding to the HCV NS3 proteins in eukaryotic cells, using a yeast three-hybrid system. The aptamers were then recognized by the HCV NS3 proteins when expressed in the cells, while the antisense sequences of the aptamers were not. These results suggest that the in vitro selected RNA aptamers can also specifically bind to the target proteins in vivo. Consequently, they could be potentially utilized as anti- HCV lead compounds.
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KEYWORD
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