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  • Supramolecular Organization of SARS-CoV and SARS-CoV-2 Virions Revealed by Coarse-Grained Models of Intact Virus Envelopes #MMPMID34911299
  • Wang B; Zhong C; Tieleman DP
  • J Chem Inf Model 2022[Jan]; 62 (1): 176-186 PMID34911299show ga
  • The coronavirus disease 19 (COVID-19) pandemic is causing a global health crisis and has already caused a devastating societal and economic burden. The pathogen, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has a high sequence and architecture identity with SARS-CoV, but far more people have been infected by SARS-CoV-2. Here, combining the structural data from cryo-electron microscopy and structure prediction, we constructed bottom-up Martini coarse-grained models of intact SARS-CoV and SARS-CoV-2 envelopes. Microsecond molecular dynamics simulations were performed, allowing us to explore their dynamics and supramolecular organization. Both SARS-CoV and SARS-CoV-2 envelopes present a spherical morphology, with structural proteins forming multiple string-like islands in the membrane and clusters between the heads of spike proteins. Critical differences between the SARS-CoV and SARS-CoV-2 envelopes are the interaction pattern between the spike proteins and the flexibility of the spike proteins. Our models provide structural and dynamic insights into the SARS virus envelopes and could be used for further investigation, such as drug design and membrane fusion and fission processes.
  • |*COVID-19[MESH]
  • |*SARS Virus[MESH]
  • |Cryoelectron Microscopy[MESH]
  • |Humans[MESH]
  • |SARS-CoV-2[MESH]
  • |Spike Glycoprotein, Coronavirus[MESH]
  • |Viral Envelope[MESH]
  • |Virion[MESH]

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  • suck abstract from ncbi

    176 1.62 2022