Structures of hepatitis C virus nonstructural proteins required for replicase assembly and function.

Structures of hepatitis C virus nonstructural proteins required for replicase assembly and function.
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DOI:
10.1016/j.coviro.2013.03.013
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发表时间:
2013-04
影响因子:
5.9
通讯作者:
Rice, Charles M.
Rice, Charles M.
中科院分区:
医学2区
文献类型:
--
作者:
Gu, Meigang;Rice, Charles M.

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世界上约有3%的人口感染丙型肝炎病毒(HCV),造成严重的公共卫生负担。与其他正链RNA病毒一样,HCV组装与细胞膜相关的复制酶复合物,并通过负链中间体产生子代RNA基因组。RNA复制所需的病毒蛋白是非结构(NS)蛋白NS3至NS5B。由于在蛋白质和具有多个跨膜区段的复合物的结构表征中的许多障碍和限制,试图理解HCV复制酶复合物的组装和作用一直具有挑战性。然而,在获得几个复制酶组分的结构信息方面已经取得了很大进展,为病毒基因组复制机制的某些方面提供了见解。
Approximately 3% of the world population is infected with hepatitis C virus (HCV), causing a serious public health burden. Like other positive-strand RNA viruses, HCV assembles replicase complexes in association with cellular membranes and produces progeny RNA genomes through negative-strand intermediates. The viral proteins required for RNA replication are nonstructural (NS) proteins NS3 to NS5B. Owing to many obstacles and limitations in structural characterization of proteins and complexes with multiple transmembrane segments, attempts to understand the assembly and action of the HCV replicase complex have been challenging. Nevertheless, great progress has been made in obtaining structural information for several replicase components, providing insights into some aspects of the viral genome replication machinery.
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