title: [Interrelationship between pterinic pigments--hommochrome pigments in Drosophila melanogaster. -IV. In-vivo inhibition of tryptophan pyrrolase activity by 4-hydroxypyrazol (3,4-d) pyrimidine (allopurinol)].
mesh_terms: D000493:Allopurinol / Q000494:pharmacology*; D000818:Animals; D001001:Anura; D004331:Drosophila melanogaster / Q000201:enzymology / Q000378:metabolism*; D010860:Pigments, Biological / Q000378:metabolism*; D011622:Pterins / Q000378:metabolism*; D014366:Tryptophan Oxygenase / Q000037:antagonists & inhibitors*
chemical_list: D010860:Pigments, Biological; D011622:Pterins; D000493:Allopurinol; D014366:Tryptophan Oxygenase
vernacular_title: Interrelazione pigmenti pterinici--pigmenti ommocromici in Drosophila melanogaster. -IV) Inibizione in vivo dell'attivita' triptofan pirrolasica mediante 4-idrossipirazolo (3,4-d) pirimidina (allopurinolo)