title: Preparation of tritiated dihydrofolate and its use in the assay of dihydrofolate reductase.
mesh_terms: D002460:Cell Line / Q000201:enzymology; D055598:Chemical Phenomena; D002621:Chemistry; D002848:Chromatography, DEAE-Cellulose; D005492:Folic Acid / Q000302:isolation & purification; D012509:Sarcoma / Q000201:enzymology; D013053:Spectrophotometry; D013762:Tetrahydrofolate Dehydrogenase / Q000032:analysis*; D014316:Tritium
chemical_list: D014316:Tritium; D005492:Folic Acid; D013762:Tetrahydrofolate Dehydrogenase