Current capsid assembly models of icosahedral nucleocytoviricota viruses.

Current capsid assembly models of icosahedral nucleocytoviricota viruses.
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DOI:
10.1016/bs.aivir.2020.09.006
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发表时间:
2020
影响因子:
--
通讯作者:
Xiao C
Xiao C
中科院分区:
医学2区
文献类型:
--
作者:
Xian Y;Xiao C

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核细胞病毒属病毒(Nucleocytoviricota virus,NCV)是一个新建立的病毒门,最初被归类为核细胞质大DNA病毒(Nucleocytoplasmic large DNA viruses)。NCV的独特之处在于其庞大而复杂的基因组,其中包含来自所有生命王国的同源细胞基因,引起了对其进化起源的激烈争论。许多NCV将它们的基因组包装在由数千种蛋白质组装而成的巨大二十面体衣壳中。研究这种衣壳的组装机制一直具有挑战性,直到结构研究取得突破。随后,提出了几种衣壳组装的模型,这为这个复杂的过程提供了一些有趣的见解。在这篇综述中,我们讨论了三个最新的组装模型以及支持实验观察。此外,我们提出了一个新的模型,结合了多个来源的研究进展。对这些巨大的NCV衣壳的组装过程的研究将有助于未来破译驱动类似超分子复合物形成的分子机制。
Nucleocytoviricota viruses (NCVs) belong to a newly established phylum originally grouped as Nucleocytoplasmic large DNA viruses. NCVs are unique because of their large and complicated genomes that contain cellular genes with homologs from all kingdoms of life, raising intensive debates on their evolutional origins. Many NCVs pack their genomes inside massive icosahedral capsids assembled from thousands of proteins. Studying the assembly mechanism of such capsids has been challenging until breakthroughs from structural studies. Subsequently, several models of the capsid assembly were proposed, which provided some interesting insights on this elaborate process. In this review, we discuss three of the most recent assembly models as well as supporting experimental observations. Furthermore, we propose a new model that combines research developments from multiple sources. Investigation of the assembly process of these vast NCV capsids will facilitate future deciphering of the molecular mechanisms driving the formation of similar supramolecular complexes.
DOI: 10.1128/jvi.01293-18
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影响因子: 5.4
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