title: DIHYDROFOLATE REDUCTASE IN GENOTYPICALLY DISTINGUISHABLE AMETHOPTERIN-RESISTANT DIPLOCOCCUS PNEUMONIAE.
mesh_terms: D005492:Folic Acid; D005838:Genotype; D006863:Hydrogen-Ion Concentration; D008727:Methotrexate; D009249:NADP; D010088:Oxidoreductases; D012106:Research; D013296:Streptococcus pneumoniae; D013762:Tetrahydrofolate Dehydrogenase
chemical_list: D009249:NADP; D005492:Folic Acid; D010088:Oxidoreductases; D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate
keywords: DIPLOCOCCUS PNEUMONIAE; EXPERIMENTAL LAB STUDY; FOLIC ACID; HYDROGEN-ION CONCENTRATION; METHOTREXATE; NADP; OXIDOREDUCTASES