id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-023726-2fduzqyb	STRAUSS, JAMES H.	The Structure of Viruses	2012-07-27		.txt	text/plain	10614	633	57	Also shown for each family is the presence or absence of an envelope in the virion, the triangulation number (defined later) if the virus is icosahedral, the morphology of the nucleocapsid or core, and figure numbers where the structures of members of a family are illustrated. Structural studies of viruses have shown that the capsid proteins that form the virions of many plant and animal icosahedral viruses have a common fold. The largest particle is the nucleocapsid of herpes simplex virus, which is 1250 Å in diameter and has T=16 symmetry (the virion is enveloped but only the nucleocapsid is regular FIGURE 2.5 Gallery of three-dimensional reconstructions of icosahedral viruses from cryoelectron micrographs. For most RNA viruses, nucleocapsids can be recognized as distinct structures within the infected cell and can be isolated from virions by treatment with detergents that dissolve the envelope.	./cache/cord-023726-2fduzqyb.txt	./txt/cord-023726-2fduzqyb.txt