Imperial College London
Alternate

Dr. Andrew Shevchuk

Faculty of Medicine, Department of Metabolism, Digestion and Reproduction

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 3313 2362a.shevchuk Website

 
 
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Location

 

Commonwealth BuildingHammersmith Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bednarska:2020:10.1073/pnas.2008156117,
author = {Bednarska, J and Pelchen-Matthews, A and Novak, P and Burden, JJ and Summers, PA and Kuimova, MK and Korchev, Y and Marsh, M and Shevchuk, A},
doi = {10.1073/pnas.2008156117},
journal = {Proceedings of the National Academy of Sciences of USA},
pages = {21637--21646},
title = {Rapid formation of human immunodeficiency virus-like particles.},
url = {http://dx.doi.org/10.1073/pnas.2008156117},
volume = {117},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Understanding the molecular mechanisms involved in the assembly of viruses is essential for discerning how viruses transmit from cell to cell and host to host. Although molecular aspects of assembly have been studied for many viruses, we still have little information about these events in real time. Enveloped viruses such as HIV that assemble at, and bud from, the plasma membrane have been studied in some detail using live cell fluorescence imaging techniques; however, these approaches provide little information about the real-time morphological changes that take place as viral components come together to form individual virus particles. Here we used correlative scanning ion conductance microscopy and fluorescence confocal microscopy to measure the topological changes, together with the recruitment of fluorescently labeled viral proteins such as Gag and Vpr, during the assembly and release of individual HIV virus-like particles (VLPs) from the top, nonadherent surfaces of living cells. We show that 1) labeling of viral proteins with green fluorescent protein affects particle formation, 2) the kinetics of particle assembly on different plasma membrane domains can vary, possibly as a consequence of differences in membrane biophysical properties, and 3) VLPs budding from the top, unimpeded surface of cells can reach full size in 20 s and disappear from the budding site in 0.5 to 3 min from the moment curvature is initially detected, significantly faster than has been previously reported.
AU  - Bednarska,J
AU  - Pelchen-Matthews,A
AU  - Novak,P
AU  - Burden,JJ
AU  - Summers,PA
AU  - Kuimova,MK
AU  - Korchev,Y
AU  - Marsh,M
AU  - Shevchuk,A
DO  - 10.1073/pnas.2008156117
EP  - 21646
PY  - 2020///
SN  - 0027-8424
SP  - 21637
TI  - Rapid formation of human immunodeficiency virus-like particles.
T2  - Proceedings of the National Academy of Sciences of USA
UR  - http://dx.doi.org/10.1073/pnas.2008156117
UR  - https://www.ncbi.nlm.nih.gov/pubmed/32817566
UR  - https://www.pnas.org/content/117/35/21637
UR  - http://hdl.handle.net/10044/1/82100
VL  - 117
ER  -
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