id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-017566-dvxrwzqw	González, María Eugenia	Viral Proteins that Enhance Membrane Permeability	2005		.txt	text/plain	4482	265	45	During the infection of cells by animal viruses, membrane permeability is modified at two different steps of the virus life cycle (Carrasco, 1995) (Figure 6 .1). The viral molecules involved are components of virions: glycoproteins when enveloped particles are analyzed or, still unidentified, domains of the structural proteins in the case of naked viruses. At late times of infection, when there is active translation of late viral mRNAs, the plasma membrane becomes permeable to small molecules and ions (Carrasco, 1978) ( Figure 6 .1). Different viral molecules may be responsible for this late enhancement of membrane permeability, including viroporins (Gonzalez and Carrasco, 2003) , glycoproteins, and even proteases (Chang et al., 1999; Blanco et al., 2003) . Entry of enveloped animal viruses leads to early membrane permeabilization, which is mediated by the formation of the two pores (fusion and TM) formed by viral fusion glycoproteins.	./cache/cord-017566-dvxrwzqw.txt	./txt/cord-017566-dvxrwzqw.txt