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TitleElectron cryotomography of SARS-CoV-2 virions reveals cylinder-shaped particles with a double layer RNP assembly.
Journal, issue, pagesCommun Biol, Vol. 5, Issue 1, Page 1210, Year 2022
Publish dateNov 10, 2022
AuthorsLesley J Calder / Thomas Calcraft / Saira Hussain / Ruth Harvey / Peter B Rosenthal /
PubMed AbstractSARS-CoV-2 is a lipid-enveloped Betacoronavirus and cause of the Covid-19 pandemic. To study the three-dimensional architecture of the virus, we perform electron cryotomography (cryo-ET) on SARS-Cov- ...SARS-CoV-2 is a lipid-enveloped Betacoronavirus and cause of the Covid-19 pandemic. To study the three-dimensional architecture of the virus, we perform electron cryotomography (cryo-ET) on SARS-Cov-2 virions and three variants revealing particles of regular cylindrical morphology. The ribonucleoprotein particles packaging the genome in the virion interior form a dense, double layer assembly with a cylindrical shape related to the overall particle morphology. This organisation suggests structural interactions important to virus assembly.
External linksCommun Biol / PubMed:36357779 / PubMed Central
MethodsEM (subtomogram averaging) / EM (tomography)
Resolution27.75 - 44.4 Å
Structure data

EMDB-15181: Prefusion spike of SARS-CoV-2 (Wuhan), closed conformation
Method: EM (subtomogram averaging) / Resolution: 29.6 Å

EMDB-15182: Electron cryotomography of SARS-CoV-2 virions
Method: EM (tomography)

EMDB-15183: Whole SARS-CoV-2 (Wuhan) virion
Method: EM (subtomogram averaging) / Resolution: 44.4 Å

EMDB-15185: Prefusion spike of SARS-CoV-2 (Wuhan), 1-RBD-up conformation
Method: EM (subtomogram averaging) / Resolution: 27.75 Å

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