[Action of ammonium ions in the first steps of the biosynthesis of purines in Escherichia coli B].
D004926:Escherichia coli / Q000378:metabolism*; D011687:Purines / Q000096:biosynthesis*; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology*
D011687:Purines; D000644:Quaternary Ammonium Compounds
Activité des ions ammonium lors des premiéres étapes de la biosynthèse des purines chez Escherichia coli B.