PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18079699-4 2008 A long region of downstream intron is excised, juxtaposing E1B with E2"/2 to generate a new composite acceptor containing the E1B branchpoint/pyrimidine tract and E2 distal 3" AG-dinucleotide. pyrimidine 142-152 small nucleolar RNA, H/ACA box 73A Homo sapiens 59-62