title: Sources of nitrogen as rate-limiting factors for purine biosynthesis de novo in Ehrlich ascites tumor cells.
mesh_terms: D000225:Adenine / Q000096:biosynthesis; D000641:Ammonia / Q000378:metabolism; D000818:Animals; D001216:Asparagine / Q000378:metabolism; D001224:Aspartic Acid / Q000378:metabolism; D002247:Carbon Isotopes; D002286:Carcinoma, Ehrlich Tumor / Q000378:metabolism*; D011756:Diphosphates; D004357:Drug Synergism; D005973:Glutamine; D005998:Glycine / Q000378:metabolism; D007042:Hypoxanthines / Q000378:metabolism; D007700:Kinetics; D008025:Ligases / Q000378:metabolism; D008717:Methionine Sulfoximine / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism*; D009711:Nucleotides / Q000096:biosynthesis; D010428:Pentosephosphates; D011687:Purines / Q000096:biosynthesis*; D014166:Transferases / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D011756:Diphosphates; D007042:Hypoxanthines; D009711:Nucleotides; D010428:Pentosephosphates; D011687:Purines; D005973:Glutamine; D008717:Methionine Sulfoximine; D001224:Aspartic Acid; D001216:Asparagine; D000641:Ammonia; D014166:Transferases; D008025:Ligases; D000225:Adenine; D009584:Nitrogen; D005998:Glycine