id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-258379-v3lceirh	Liu, D. X.	Association of the infectious bronchitis virus 3c protein with the virion envelope	1991-12-31		.txt	text/plain	2868	121	53	There was considerably less evidence of contaminating cellular proteins in this gradient, and the relative proportion of the 12K protein to the other virion proteins appeared similar to that observed at the previous stage in purification, strongly supporting the idea of a specific association between the 12K protein and virus particles. In order to establish the identity of the 12K polypeptide as the product of the 3c gene, and to examine the possibility that IBV virions might contain other new virus polypeptides in amounts too small to detect directly, we next carried out immunoprecipitation experiments using monospecific antisera directed against the predicted products of the 3a, 3b, 3c, 5a, and 5b ORFs (17, 18, 23) . Messenger RNA 4 of mouse hepatitis virus (MHV) is known to encode a 15K polypeptide, the predicted amino acid sequence of which contains a highly hydrophobic region from residues 8 to 41 (9, 22) , although the protein has not so far been found in virions.	./cache/cord-258379-v3lceirh.txt	./txt/cord-258379-v3lceirh.txt