title: Positional isotope exchange studies of enzyme mechanisms.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D000255:Adenosine Triphosphate; D002223:Carbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing) / Q000378:metabolism; D004798:Enzymes / Q000378:metabolism*; D005974:Glutamate-Ammonia Ligase / Q000378:metabolism; D007553:Isotope Labeling / Q000379:methods*; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D013058:Mass Spectrometry / Q000379:methods; D008433:Mathematics; D009218:Myosins / Q000378:metabolism; D010103:Oxygen Isotopes; D010770:Phosphotransferases / Q000378:metabolism; D010785:Photophosphorylation
chemical_list: D004798:Enzymes; D010103:Oxygen Isotopes; D000255:Adenosine Triphosphate; D010770:Phosphotransferases; D000251:Adenosine Triphosphatases; D009218:Myosins; D005974:Glutamate-Ammonia Ligase; D002223:Carbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)