Project information
Structural study of enterovirus replication in situ
- Project Identification
- GX19-25982X (kod CEP: GX19-25982X)
- Project Period
- 1/2019 - 12/2023
- Investor / Pogramme / Project type
-
Czech Science Foundation
- EXPRO
- MU Faculty or unit
- Central European Institute of Technology
Viruses from the genus Enterovirus, including coxsackieviruses and rhinoviruses, cause billions of infections every year. However, no anti-enterovirus treatments are available. We aim to structurally characterize enterovirus replication in situ to enable the identification of macromolecular interactions that could be targeted by therapeutics. We will use focused ion beam milling and cryo-electron tomography to determine: (1) how enteroviruses deliver their genomes into the cell cytoplasm; (2) whether enterovirus replication “factories” in infected cells contain the multi-subunit complexes of RNA-polymerases that were observed in vitro; and (3) whether enterovirus capsids assemble around genomes or if the genomes are packaged into capsids. To facilitate the cryo-electron tomography studies we will develop: (1) patterned grids to enable automation of the focused ion beam milling of cell sections; and (2) a method to embed macromolecules in rod-shaped vitreous ice to allow the recording of more complete tomographic data than is possible with currently used slab-shaped samples.
Sustainable Development Goals
Masaryk University is committed to the UN Sustainable Development Goals, which aim to improve the conditions and quality of life on our planet by 2030.
Publications
Total number of publications: 21
2024
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Endosome rupture enables enteroviruses from the family <i>Picornaviridae</i> to infect cells
Communications Biology, year: 2024, volume: 7, edition: 1, DOI
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Structure and replication cycle of a virus infecting climate-modulating alga Emiliania huxleyi
Science advances, year: 2024, volume: 10, edition: 15, DOI
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The structure of immature tick-borne encephalitis virussupports the collapse model of flavivirus maturation
2023
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In-situ cryo-electron tomography of Enterovirus replication
Year: 2023, type: Conference abstract
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Towards the identification of Enterovirus replication cycle in situ
Year: 2023, type: Conference abstract
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Unravelling Tick-Borne Encephalitis Virus Neutralisation Mechanisms with Cryo-EM
Year: 2023, type: Conference abstract
2022
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Cryo-electron microscopy and image classification reveal the existence and structure of the coxsackievirus A6 virion
Communications Biology, year: 2022, volume: 5, edition: 1, DOI
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Enteroviruses reach cytoplasm by endosome disruption
Year: 2022, type: Conference abstract
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In situ cryo-electron tomography of enterovirus cell entry
Year: 2022, type: Conference abstract
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Polyelectrolyte coating of cryo-EM grids improves lateral distribution and prevents aggregation of macromolecules
Acta Crystallographica Section D: Structural Biology, year: 2022, volume: 78, edition: NOV, DOI