On the geometry of regular icosahedral capsids containing disymmetrons.

  title={On the geometry of regular icosahedral capsids containing disymmetrons.},
  author={Kai-Siang Ang and Laura P. Schaposnik},
  journal={Journal of structural biology},
  volume={197 3},

Breaking Symmetry in Viral Icosahedral Capsids as Seen through the Lenses of X-ray Crystallography and Cryo-Electron Microscopy

The design principles of non-icosahedral structural components that interrupt icosahedral symmetry are reviewed and how these macromolecules play vital roles in genome packaging, ejection and host receptor-binding are discussed.



A tale of two symmetrons: rules for construction of icosahedral capsids from trisymmetrons and pentasymmetrons.

The capsid proteins of a large, icosahedral dsDNA virus.

Structure and assembly of large lipid-containing dsDNA viruses

Cryo-EM studies of CIV and PBCV-1 show that both viruses have profiles characteristic of icosahedra viewed in different orientations, suggesting a common evolutionary origin and therefore serve as a paradigm for other large viruses, such as African swine fever virus, frog virus-3 and many others.

Fine Structure of the Iridescent Virus Type I Capsid

A model for iridescent virus type I capsid is proposed, consisting of 12 pentagons and 20 triangles (1100 subunits) and the total number of subunits is 1472.

The Marine Algal Virus PpV01 Has an Icosahedral Capsid with T=219 Quasisymmetry

PpV01 is the largest icosahedral virus whose capsid structure has been determined in three dimensions from images of vitrified samples and striking similarities in the structures are consistent with a growing body of evidence that they share a common evolutionary origin.

An electron microscope study of the structure of Sericesthis iridescent virus.

Summary Purified suspensions of Sericesthis iridescent virus were treated with a nasal decongestant, negatively stained and examined in the electron microscope. The outer icosahedral surface of the

Structure of faustovirus, a large dsDNA virus

The crystal structure of the major capsid protein, in combination with cryo-electron microscopy structures of two different maturation stages of the virus, shows that the outer virus shell is composed of a double jelly-roll protein that can be found in many double-stranded DNA viruses.

Structure of Small Viruses

Watson and Crick proposed that plant viruses consistently took one of two shapes because the two chemical components of which they were made up, ribonucleic acid surrounded by a large number of identical protein subunits, were assembled according to a general plan that was determined by "symmetry elements".

Physical principles in the construction of regular viruses.

  • D. CasparA. Klug
  • Biology
    Cold Spring Harbor symposia on quantitative biology
  • 1962
The authors' designs obey strict icosahedral symmetry, with the asymmetric unit in each case containing a heterodimer that comprises one subunit from each of the two components.

Ljunggren's Diophantine problem connected with virus structure

In this paper we give an effective method for determination of all solutions of the Ljunggren’s Diophantine equation