Abstract

The translation of HCV starts at the internal ribosomal entry site (IRES) within the 5' untranslated region and domain II of IRES is essential for translation activity. However, the information of function is limited. We attempted to obtain RNA that bind HCV IRES domain II. Selected aptamers will give us much information, such as RNA-RNA interaction between IRES and other cellular RNAs as well as target sites for anti-HCV drugs. We developed a novel selection method using biotinylated DNA probe. This method can be applied to many RNAs and would identify the most suitable target position experimentally and simply. The binding kinetics of aptamers were analyzed by using Biacore. Furthermore, inhibition of translation by aptamers was analyzed.

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