PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16906767-2 2006 In the current model, U2AF65, bound at the polypyrimidine tract of the intron, recruits U2 snRNP to the branch point sequence by interacting with the U2 snRNP protein SF3b155. polypyrimidine 43-57 splicing factor 3b subunit 1 Homo sapiens 167-174