title: Co-operativity in ligand binding to dihydrofolate reductase [proceedings].
mesh_terms: D008024:Ligands; D008727:Methotrexate / Q000378:metabolism; D013762:Tetrahydrofolate Dehydrogenase / Q000378:metabolism*
chemical_list: D008024:Ligands; D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate