icosahedral


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i·co·sa·he·dral

(ī'kō-să-hē'drăl),
Having 20 equilateral triangular surfaces and 12 vertices, as do most viruses with cubic symmetry.
[G. eikosi, twenty, + -edros, having sides or bases]

icosahedral

a regular polyhedron with 20 triangular faces, 12 corners and 30 sides, having cubic symmetry with 5:3:2-fold axes. A common structural form for the capsid of many viruses including herpesviruses, adenoviruses, parvoviruses, reoviruses, picornaviruses and retroviruses.
References in periodicals archive ?
Nature provides many examples of self- and co-assembling protein-based molecular structures like icosahedral protein cages.
After selecting the design for this icosahedral nano-cage through computer modeling, the researchers produced it in bacteria.
In the case of icosahedral inclusions, prismatic fibers, and fracture model, we have used the algorithm proposed in [30] to find the distance from a point to a polyhedron.
TEM observation of the phage [PHI]MSP revealed that it had an icosahedral head/capsid and a noncontractile tail and was similar to the members belonging to Siphoviridae family according to the guidelines of the International Committee on Taxonomy of Viruses.
Physical characterization of icosahedral virus ultra structure, stability, and integrity using electrospray differential mobility analysis.
Along with other viruses in this family, Zika virus is enveloped and icosahedral with a non-segmented, single-stranded, positive sense RNA genome.
The viruses were non-enveloped, spherical to icosahedral and measured 22 to 28 nm in diameter.
The human papilloma viruses are a family of icosahedral, non-enveloped viruses with a circular, double-stranded DNA genome, which has special affinity for epithelial cells.
DTI data was acquired using a single-shot Spin Echo EPI (MDDW) sequence for 20 gradient directions following an icosahedral scheme and a b-value of 600 s x [mm.
Even the 'simple' icosahedral protein coat of the T1 virus requires integration of 60 protein components.