RNA Control of HIV-1 Particle Size Polydispersity

Cendrine Faivre-Moskalenko 1 Julien Bernaud 1 Audrey Thomas 2, 3 Kevin Tartour 3 Yvonne Beck 1 Maksym Iazykov 1 John Danial 1 Morgane Lourdin 3 Delphine Muriaux 2, 3 Martin Castelnovo 1, *
* Corresponding author
1 Phys-ENS - Laboratoire de Physique de l'ENS Lyon
2 IRIM - Institut de Recherche en Infectiologie de Montpellier
3 Virologie humaine
Abstract : HIV-1, an enveloped RNA virus, produces viral particles that are known to be much more heterogeneous in size than is typical of non-enveloped viruses. We present here a novel strategy to study HIV-1 Viral Like Particles (VLP) assembly by measuring the size distribution of these purified VLPs and subsequent viral cores thanks to Atomic Force Microscopy imaging and statistical analysis. This strategy allowed us to identify whether the presence of viral RNA acts as a modulator for VLPs and cores size heterogeneity in a large population of particles. These results are analyzed in the light of a recently proposed statistical physics model for the self-assembly process. In particular, our results reveal that the modulation of size distribution by the presence of viral RNA is qualitatively reproduced, suggesting therefore an entropic origin for the modulation of RNA uptake by the nascent VLP.
Document type :
Journal articles
Complete list of metadatas

Cited literature [35 references]  Display  Hide  Download
https://hal-ens-lyon.archives-ouvertes.fr/ensl-00947571
Contributor : Martin Castelnovo <>
Submitted on : Monday, February 17, 2014 - 9:31:28 AM
Last modification on : Thursday, November 21, 2019 - 2:30:54 AM
Long-term archiving on: Saturday, May 17, 2014 - 11:15:22 AM

File

manuscriptMOSKALENKO.pdf
Files produced by the author(s)

Identifiers

Collections

ENS-LYON | CNRS | UNIV-MONTPELLIER | BS | UNIV-LYON1 | UDL

Citation

Cendrine Faivre-Moskalenko, Julien Bernaud, Audrey Thomas, Kevin Tartour, Yvonne Beck, et al.. RNA Control of HIV-1 Particle Size Polydispersity. PLoS ONE, Public Library of Science, 2014, 9 (1), pp.e83874. ⟨10.1371/journal.pone.0083874⟩. ⟨ensl-00947571⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

802

Files downloads

307

Contact

Informations

CCSD