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. 1983;2(1):63–66. doi: 10.1002/j.1460-2075.1983.tb01381.x

Internal structural anisotropy of spherical viruses studied with magnetic birefringence.

J Torbet 1
PMCID: PMC555087  PMID: 11894910

Abstract

Six so called spherical viruses (four plant and two animal) are shown to exhibit magnetically induced birefringence in solution. They must therefore be magnetically and optically anisotropic. This is attributed to static structural anisotropy of the interiors as neither natural shape nor field-induced deformations are likely causes. Thus at least part of these virus cores have a symmetry differing from that of their capsids. An estimate of the average orientation of the RNA bases is given for the plant viruses: turnip yellow mosaic, bromegrass mosaic, tomato bushy stunt and turnip crinkle. The packing geometry of the nucleic acid/protein cores of adenovirus and probably influenza virus are anisotropic but to an extent that cannot be quantified.

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Selected References

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