title: Direct observation of tryptophan biosynthesis in Escherichia coli by carbon-13 nuclear magnetic resonance spectroscopy.
authors.forename: D J
authors.initials: DJ
authors.lastname: Ashworth
authors.forename: C S
authors.initials: CS
authors.lastname: Chen
authors.forename: D
authors.initials: D
authors.lastname: Mascarenhas
mesh_terms: D002247:Carbon Isotopes; D004926:Escherichia coli / Q000378:metabolism*; D005947:Glucose / Q000378:metabolism; D005998:Glycine / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D012694:Serine / Q000378:metabolism; D014364:Tryptophan / Q000096:biosynthesis*
chemical_list: D002247:Carbon Isotopes; D012694:Serine; D014364:Tryptophan; D005947:Glucose; D005998:Glycine