PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9050858-4 1997 5-FU is a pyrimidine antimetabolite cytotoxin with multiple mechanisms of action, including inhibition of thymidylate synthase (TS), which gives rise to DNA damage, and incorporation into RNA. Fluorouracil 0-4 thymidylate synthase Mus musculus 106-126