Packaging of DNA in cauliflower mosaic virus and bacteriophage SD studied with magnetic birefringence.

Abstract:

:Magnetic birefringence measurements are reported on solutions of two double-stranded DNA containing viruses: icosahedral cauliflower mosaic virus (CaMV) and SD, an isometric bacteriophage with a short tail. Assuming the signal comes predominantly from the DNA, constraints can be put on its packing geometry. The anisotropy of CaMV is consistent with the DNA having a near orthogonally wound spool-like structure. The DNA anisotropy is smaller in SD but is compatible with a spool-like structure if the windings are tilted about the spool axis or if a significant proportion of the DNA is effectively isotropically packed. Intermediate structures are also possible.

journal_name

Virology

journal_title

Virology

authors

Torbet J,Timmins PA,Lvov Y

doi

10.1016/0042-6822(86)90232-1

subject

Has Abstract

pub_date

1986-12-01 00:00:00

pages

721-5

issue

2

eissn

0042-6822

issn

1096-0341

pii

0042-6822(86)90232-1

journal_volume

155

pub_type

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