title: Preparation of 15N-labeled L-aspartic acid using whole bacteria as enzyme source.
mesh_terms: D000642:Ammonia-Lyases / Q000302:isolation & purification*; D001220:Aspartate Ammonia-Lyase / Q000302:isolation & purification*; D001224:Aspartic Acid / Q000302:isolation & purification*; D001426:Bacterial Proteins / Q000302:isolation & purification; D002954:Citrobacter / Q000201:enzymology; D007553:Isotope Labeling; D013058:Mass Spectrometry; D009587:Nitrogen Isotopes
chemical_list: D001426:Bacterial Proteins; D009587:Nitrogen Isotopes; D001224:Aspartic Acid; D000642:Ammonia-Lyases; D001220:Aspartate Ammonia-Lyase