title: Metabolic control of synthesis of the different forms of dihydrofolate reductase of the amethopterin-resistant Streptococcus faecium var. durans A k .
mesh_terms: D002850:Chromatography, Gel; D004352:Drug Resistance, Microbial; D004589:Electrophoresis, Disc; D004789:Enzyme Activation; D004790:Enzyme Induction; D005492:Folic Acid / Q000494:pharmacology; D005493:Folic Acid Antagonists; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008727:Methotrexate / Q000494:pharmacology; D011189:Potassium Chloride; D011687:Purines / Q000494:pharmacology; D013291:Streptococcus / Q000187:drug effects / Q000201:enzymology* / Q000254:growth & development; D013762:Tetrahydrofolate Dehydrogenase / Q000096:biosynthesis*; D013941:Thymine / Q000494:pharmacology
chemical_list: D005493:Folic Acid Antagonists; D011687:Purines; D011189:Potassium Chloride; D005492:Folic Acid; D013762:Tetrahydrofolate Dehydrogenase; D013941:Thymine; D008727:Methotrexate