PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11127890-0 2000 Lanthanide ions inhibit the activity of dihydrofolate reductase from chicken liver. Lanthanoid Series Elements 0-10 dihydrofolate reductase Gallus gallus 40-63 11127890-5 2000 The trivalent lanthanide ions, however, show a dramatic inhibition of activity of DHFR even at very low concentration. Lanthanoid Series Elements 14-24 dihydrofolate reductase Gallus gallus 82-86