Lecture 3. Physical Structures. Terms Capsid Envelopes Nucleocapsid Helical Icosahedral. Great website: http://viperdb.scripps.edu/. Size, mass, dimensions of viruses. Particle- An aggregate of many molecules often of different nature.
Great website: http://viperdb.scripps.edu/
The genome does not have enough information to encode a single protein that could encapsidate it.
Topology follows the biophysical geometry of the nucleic acid genome.
of Tobacco Mosaic Virus.
EM of Influenza C
Basic soccer ball and variations.
Topology follows the constraints of Euclidean solid geometry.
12 vertices, 20 triangular faces, 30 edges.
5- , 3-, and 2-fold rotational axes.
5-fold rotational axes pass through the vertices.
3-fold pass through centers of the triangular faces.
2-fold pass through the edges.
Vaccinia virus, from Fig. 13.16