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How simple can a model of an empty viral capsid be? Charge distributions in viral capsids.


ABSTRACT: We investigate and quantify salient features of the charge distributions on viral capsids. Our analysis combines the experimentally determined capsid geometry with simple models for ionization of amino acids, thus yielding a detailed description of spatial distribution for positive and negative charges across the capsid wall. The obtained data is processed in order to extract the mean radii of distributions, surface charge densities, as well as dipole moment densities. The results are evaluated and examined in light of previously proposed models of capsid charge distributions, which are shown to have to some extent limited value when applied to real viruses.

SUBMITTER: Losdorfer Bozic A 

PROVIDER: S-EPMC3473132 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature

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How simple can a model of an empty viral capsid be? Charge distributions in viral capsids.

Lošdorfer Božič Anže A   Siber Antonio A   Podgornik Rudolf R  

Journal of biological physics 20120906 4


We investigate and quantify salient features of the charge distributions on viral capsids. Our analysis combines the experimentally determined capsid geometry with simple models for ionization of amino acids, thus yielding a detailed description of spatial distribution for positive and negative charges across the capsid wall. The obtained data is processed in order to extract the mean radii of distributions, surface charge densities, as well as dipole moment densities. The results are evaluated  ...[more]

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