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RNA control of HIV-1 particle size polydispersity.

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.

SUBMITTER: Faivre-Moskalenko C

PROVIDER: S-EPMC3901647 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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RNA control of HIV-1 particle size polydispersity.

Faivre-Moskalenko Cendrine C Bernaud Julien J Thomas Audrey A Tartour Kevin K Beck Yvonne Y Iazykov Maksym M Danial John J Lourdin Morgane M Muriaux Delphine D Castelnovo Martin M

PloS one 20140124 1

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 si ...[more]

PMID: 24475027

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Dataset Information

RNA control of HIV-1 particle size polydispersity.

Publications

RNA control of HIV-1 particle size polydispersity.

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