Cryo-electron microscopy reveals the functional organization of an enveloped virus, Semliki Forest virus.

Semliki Forest virus serves as a paradigm for membrane fusion and assembly. Our icosahedral reconstruction combined 5276 particle images from 48 cryo-electron micrographs and determined the virion structure to 9 A resolution. The improved resolution of this map reveals an N-terminal arm linking caps...

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Main Authors: Mancini, E, Clarke, M, Gowen, B, Rutten, T, Fuller, S
Format: Journal article
Language:English
Published: 2000
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author Mancini, E
Clarke, M
Gowen, B
Rutten, T
Fuller, S
author_facet Mancini, E
Clarke, M
Gowen, B
Rutten, T
Fuller, S
author_sort Mancini, E
collection OXFORD
description Semliki Forest virus serves as a paradigm for membrane fusion and assembly. Our icosahedral reconstruction combined 5276 particle images from 48 cryo-electron micrographs and determined the virion structure to 9 A resolution. The improved resolution of this map reveals an N-terminal arm linking capsid subunits and defines the spike-capsid interaction sites. It illustrates the paired helical nature of the transmembrane segments and the elongated structures connecting them to the spike projecting domains. A 10 A diameter density in the fusion protein lines the cavity at the center of the spike. These clearly visible features combine with the variation in order between the layers to provide a framework for understanding the structural changes during the life cycle of an enveloped virus.
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spelling oxford-uuid:95c01df8-96b6-4eb0-8c63-1a6bbac20c262022-03-26T23:48:20ZCryo-electron microscopy reveals the functional organization of an enveloped virus, Semliki Forest virus.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:95c01df8-96b6-4eb0-8c63-1a6bbac20c26EnglishSymplectic Elements at Oxford2000Mancini, EClarke, MGowen, BRutten, TFuller, SSemliki Forest virus serves as a paradigm for membrane fusion and assembly. Our icosahedral reconstruction combined 5276 particle images from 48 cryo-electron micrographs and determined the virion structure to 9 A resolution. The improved resolution of this map reveals an N-terminal arm linking capsid subunits and defines the spike-capsid interaction sites. It illustrates the paired helical nature of the transmembrane segments and the elongated structures connecting them to the spike projecting domains. A 10 A diameter density in the fusion protein lines the cavity at the center of the spike. These clearly visible features combine with the variation in order between the layers to provide a framework for understanding the structural changes during the life cycle of an enveloped virus.
spellingShingle Mancini, E
Clarke, M
Gowen, B
Rutten, T
Fuller, S
Cryo-electron microscopy reveals the functional organization of an enveloped virus, Semliki Forest virus.
title Cryo-electron microscopy reveals the functional organization of an enveloped virus, Semliki Forest virus.
title_full Cryo-electron microscopy reveals the functional organization of an enveloped virus, Semliki Forest virus.
title_fullStr Cryo-electron microscopy reveals the functional organization of an enveloped virus, Semliki Forest virus.
title_full_unstemmed Cryo-electron microscopy reveals the functional organization of an enveloped virus, Semliki Forest virus.
title_short Cryo-electron microscopy reveals the functional organization of an enveloped virus, Semliki Forest virus.
title_sort cryo electron microscopy reveals the functional organization of an enveloped virus semliki forest virus
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AT gowenb cryoelectronmicroscopyrevealsthefunctionalorganizationofanenvelopedvirussemlikiforestvirus
AT ruttent cryoelectronmicroscopyrevealsthefunctionalorganizationofanenvelopedvirussemlikiforestvirus
AT fullers cryoelectronmicroscopyrevealsthefunctionalorganizationofanenvelopedvirussemlikiforestvirus