PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
12015979-2	2002	An unusual sequence arrangement of two AG dinucleotides and an intervening polypyrimidine (Py)-tract at the 3" end of intron 2 is important for Sxl autoregulation.	polypyrimidine	75-89	Sex lethal	Drosophila melanogaster	144-147	
7680770-5	1993	Here we show that Sxl inhibits splicing to the non-sex-specific (default) site by specifically binding to its polypyrimidine tract, blocking the binding of the essential splicing factor U2AF.	polypyrimidine	110-124	Sex lethal	Drosophila melanogaster	18-21	
12554879-0	2003	Sex lethal and U2 small nuclear ribonucleoprotein auxiliary factor (U2AF65) recognize polypyrimidine tracts using multiple modes of binding.	polypyrimidine	86-100	Sex lethal	Drosophila melanogaster	0-10	
11565743-2	2001	We have previously shown that SXL blocks the binding of U2 auxiliary factor (U2AF) to the polypyrimidine (Py)-tract associated with the 3" splice site of the regulated intron.	polypyrimidine	90-104	Sex lethal	Drosophila melanogaster	30-33	
10617208-2	1999	Here we report that splicing inhibition of msl-2 requires a binding site for SXL at the polypyrimidine (poly(Y)) tract associated with the 3" splice site, and an unusually long distance between the poly(Y) tract and the conserved AG dinucleotide at the 3" end of the intron.	polypyrimidine	88-102	Sex lethal	Drosophila melanogaster	77-80	
10217141-1	1999	The Sex-lethal (Sxl) protein of Drosophila melanogaster regulates alternative splicing of the transformer (tra) messenger RNA precursor by binding to the tra polypyrimidine tract during the sex-determination process.	polypyrimidine	158-172	Sex lethal	Drosophila melanogaster	4-14	
10217141-1	1999	The Sex-lethal (Sxl) protein of Drosophila melanogaster regulates alternative splicing of the transformer (tra) messenger RNA precursor by binding to the tra polypyrimidine tract during the sex-determination process.	polypyrimidine	158-172	Sex lethal	Drosophila melanogaster	16-19	
7556096-2	1995	In part, Sxl functions by regulating the splicing of the transformer pre-mRNA by binding to a 3" splice site polypyrimidine tract.	polypyrimidine	109-123	Sex lethal	Drosophila melanogaster	9-12	
7556096-10	1995	Interestingly, in vitro Sxl bound with equal affinity to polypyrimidine tracts of pre-mRNAs that it does not regulate in vivo.	polypyrimidine	57-71	Sex lethal	Drosophila melanogaster	24-27	
7556096-11	1995	We discuss the implications of this finding for the mechanism through which Sxl may gain selectivity for particular polypyrimidine tracts in vivo.	polypyrimidine	116-130	Sex lethal	Drosophila melanogaster	76-79