Structure and assembly of the Ebola virus nucleocapsid.
Structure and assembly of the Ebola virus nucleocapsid.
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DOI:
10.1038/nature24490
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发表时间:
2017-11-16
期刊:
影响因子:
64.8
通讯作者:
Briggs JAG
中科院分区:
文献类型:
--
作者:
Wan W;Kolesnikova L;Clarke M;Koehler A;Noda T;Becker S;Briggs JAG
Ebola and Marburg viruses are filoviruses: filamentous, enveloped viruses that cause hemorrhagic fever. Filoviruses are within the order Mononegavirales which also includes rabies virus, measles virus, and respiratory syncytial virus. Mononegaviruses have non-segmented, single-stranded negative-sense RNA genomes that are encapsidated by nucleoprotein (NP) and other viral proteins to form a helical nucleocapsid (NC). NC acts as a scaffold for virus assembly and as a template for genome transcription and replication. Insights into NP-NP interactions have been derived from structural studies of oligomerized, RNA-encapsidating NP and cryo-electron microscopy (cryo-EM) of NC or NC-like structures. There have been no high-resolution reconstructions of complete mononegavirus NCs. Here, we have applied cryo-electron tomography and subtomogram averaging to determine the structure of Ebola virus NC within intact viruses and recombinant NC-like assemblies. These structures reveal the identity and arrangement of the NC components, and suggest that the formation of an extended alpha-helix from the disordered C-terminal region of NP-core links NP oligomerization, NC condensation, RNA encapsidation, and accessory protein recruitment.
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3
作者:
Kremer, JR;Mastronarde, DN;McIntosh, JR
通讯作者:
McIntosh, JR
DOI:
10.1099/vir.0.053025-0
发表时间:
2013-08
期刊:
The Journal of general virology
影响因子:
--
作者:
Bakker SE;Duquerroy S;Galloux M;Loney C;Conner E;Eléouët JF;Rey FA;Bhella D
通讯作者:
Bhella D