title: A re-evaluation of the competitive protein binding assay for methotrexate binding to dihydrofolate reductase.
mesh_terms: D000327:Adsorption; D001667:Binding, Competitive; D002606:Charcoal; D006801:Humans; D066298:In Vitro Techniques; D008727:Methotrexate / Q000378:metabolism*; D008970:Molecular Weight; D009249:NADP / Q000378:metabolism; D013762:Tetrahydrofolate Dehydrogenase / Q000378:metabolism*
chemical_list: D002606:Charcoal; D009249:NADP; D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate