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
中科院分区:
文献类型:
--
作者:
Xian Y;Xiao C
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.
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