PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12628490-7 2003 For 2008/MRP1 and 2008/MRP3 cells FA growth stimulation capacity was dramatically decreased when, during a 4 hr exposure, metabolism into rapidly polyglutamatable and retainable dihydrofolate was blocked by the dihydrofolate reductase inhibitor trimetrexate. dihydrofolate 178-191 ATP binding cassette subfamily C member 1 Homo sapiens 9-13