title: Purification and properties of mutant and wild-type dihydrofolate reductase from Diplococcus pneumoniae.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002845:Chromatography; D002852:Chromatography, Ion Exchange; D008967:Molecular Biology; D009154:Mutation; D013296:Streptococcus pneumoniae / Q000201:enzymology*; D013762:Tetrahydrofolate Dehydrogenase / Q000378:metabolism*
chemical_list: D013762:Tetrahydrofolate Dehydrogenase