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MS2 bacteriophage capsid studied using all-atom molecular dynamics.


ABSTRACT: The all-atom model of an MS2 bacteriophage particle without its genome (the capsid) was built using high-resolution cryo-electron microscopy (EM) measurements for initial conformation. The structural characteristics of the capsid and the dynamics of the surrounding solution were examined using molecular dynamics simulation. The model demonstrates the overall preservation of the cryo-EM structure of the capsid at physiological conditions (room temperature and ions composition). The formation of a dense anion layer near the inner surface and a diffuse cation layer near the outer surface of the capsid was detected. The flow of water molecules and ions across the capsid through its pores were quantified, which was considerable for water and substantial for ions.

SUBMITTER: Farafonov VS 

PROVIDER: S-EPMC6501343 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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MS2 bacteriophage capsid studied using all-atom molecular dynamics.

Farafonov Vladimir S VS   Nerukh Dmitry D  

Interface focus 20190419 3


The all-atom model of an MS2 bacteriophage particle without its genome (the capsid) was built using high-resolution cryo-electron microscopy (EM) measurements for initial conformation. The structural characteristics of the capsid and the dynamics of the surrounding solution were examined using molecular dynamics simulation. The model demonstrates the overall preservation of the cryo-EM structure of the capsid at physiological conditions (room temperature and ions composition). The formation of a  ...[more]

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