id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-266230-ia04jc9j	Rott, M. E.	Comparison of the 5′ and 3′ termini of tomato ringspot virus RNA1 and RNA2: Evidence for RNA recombination	1991-11-30		.txt	text/plain	2003	119	56	It is possible that the similar sequences at both ends of TomRSV RNA1 and RNA2 are a result of recombination between these two genomic RNA components. Beginning from the first potential in-frame initiation site at AUG,B, the N-terminal regions of the TomRSV RNA1 and RNA2 polyproteins are identical for the first 132 amino acids, and of the next 145 amino acid residues 75.3% of the positions are identical (Fig. 3A ). The fact that these regions of similarity are present only at the N-termini of the TBRV and GCMV RNAl-encoded polyproteins but are present at the N-termini of both TomRSV RNA1 -and RNA2encoded pofyproteins suggests that a large portion of coding and noncoding sequences at the 5' terminus of TomRSV RNA1 have been duplicated and are now present at the 5' terrnini of both RNA1 and RNA2.	./cache/cord-266230-ia04jc9j.txt	./txt/cord-266230-ia04jc9j.txt