PMID-sentid Pub_year Sent_text comp_official_name comp_offset protein_name organism prot_offset 7630735-4 1995 SnR34 and snR35 contain a trimethylguanosine cap, but this feature is absent from snR36. trimethylguanosine 26-44 SNR35 Saccharomyces cerevisiae S288C 10-15