PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
21714144-3	2011	Polypyrimidine tract binding (PTB) proteins and Fox-1 proteins also undergo mutually exclusive alternative splicing in neural and non-neural cells that regulates their tissue-specific expression and splicing activities.	polypyrimidine	0-14	polypyrimidine tract binding protein 1	Rattus norvegicus	30-33