Hepatitis C virus translation inhibitors targeting the internal ribosomal entry site.

Hepatitis C virus translation inhibitors targeting the internal ribosomal entry site.
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针对内部核糖体入口部位的丙型肝炎病毒翻译抑制剂。

DOI:
10.1021/jm401312n
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发表时间:
2014-03-13
影响因子:
7.3
通讯作者:
Hermann T
Hermann T
中科院分区:
医学1区
文献类型:
--
作者:
Dibrov SM;Parsons J;Carnevali M;Zhou S;Rynearson KD;Ding K;Garcia Sega E;Brunn ND;Boerneke MA;Castaldi MP;Hermann T

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丙型肝炎病毒(HCV)基因组5′非翻译区(UTR)的内部核糖体进入位点(IRES)启动病毒多聚蛋白前体的翻译。IRES RNA的独特结构和5′ UTR的高度序列保守性使其成为开发选择性病毒翻译抑制剂的潜在靶点。在这里,我们提供了一个概述的方法来阻止HCV IRES功能的核酸,肽和小分子配体。重点将放在IRES亚结构域IIa上,它是目前HCV翻译小分子抑制剂的最先进靶点。亚结构域IIa作为RNA构象开关。选择性配体通过锁定RNA开关的构象而充当翻译抑制剂。我们综述了抑制剂的合成方法以及亚结构域IIa靶点及其配体复合物的结构和功能研究。
The internal ribosome entry site (IRES) in the 5′ untranslated region (UTR) of the hepatitis C virus (HCV) genome initiates translation of the viral polyprotein precursor. The unique structure and high sequence conservation of the 5′ UTR render the IRES RNA a potential target for the development of selective viral translation inhibitors. Here, we provide an overview of approaches to block HCV IRES function by nucleic acid, peptide and small molecule ligands. Emphasis will be given to the IRES subdomain IIa which currently is the most advanced target for small molecule inhibitors of HCV translation. The subdomain IIa behaves as an RNA conformational switch. Selective ligands act as translation inhibitors by locking the conformation of the RNA switch. We review synthetic procedures for inhibitors as well as structural and functional studies of the subdomain IIa target and its ligand complexes.
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发表时间: 2011-10-12
期刊: STRUCTURE
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