title: Determination of the rates of synthesis and degradation of enzymes by complex formation with radioactive ligands.
mesh_terms: D002250:Carbon Radioisotopes; D002460:Cell Line; D007553:Isotope Labeling / Q000379:methods; D007700:Kinetics; D008024:Ligands; D008727:Methotrexate / Q000494:pharmacology; D011485:Protein Binding; D013762:Tetrahydrofolate Dehydrogenase / Q000096:biosynthesis / Q000378:metabolism*; D014316:Tritium
chemical_list: D002250:Carbon Radioisotopes; D008024:Ligands; D014316:Tritium; D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate