Methotrexate binding to dihydrofolate reductase.
D055598:Chemical Phenomena; D002621:Chemistry; D008727:Methotrexate / Q000378:metabolism*; D013762:Tetrahydrofolate Dehydrogenase / Q000378:metabolism*
D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate