title: A purine auxotroph deficient in phosphoribosylpyrophosphate amido-transferase and phosphoribosylpyrophosphate aminotransferase activities with normal activity of ribose-5-phosphate aminotransferase.
mesh_terms: D000582:Amidophosphoribosyltransferase / Q000172:deficiency*; D000606:Amino Sugars; D000641:Ammonia; D002455:Cell Division; D002460:Cell Line; D007042:Hypoxanthines / Q000378:metabolism; D010430:Pentosyltransferases / Q000172:deficiency*; D010754:Phosphoribosyl Pyrophosphate; D011687:Purines / Q000096:biosynthesis*; D012267:Ribosemonophosphates / Q000031:analogs & derivatives / Q000096:biosynthesis; D000637:Transaminases / Q000172:deficiency / Q000378:metabolism*
chemical_list: D000606:Amino Sugars; D007042:Hypoxanthines; D011687:Purines; D012267:Ribosemonophosphates; D010754:Phosphoribosyl Pyrophosphate; D000641:Ammonia; D010430:Pentosyltransferases; D000582:Amidophosphoribosyltransferase; D000637:Transaminases