title: Tyrosinase in the presumptive pigment cells of ascidian embryos: tyrosine accessibility may initiate melanin synthesis.
mesh_terms: D000818:Animals; D001921:Brain / Q000166:cytology* / Q000196:embryology / Q000378:metabolism; D004156:Catechol Oxidase / Q000378:metabolism*; D055598:Chemical Phenomena; D002621:Chemistry; D004295:Dihydroxyphenylalanine; D005615:Freezing; D006651:Histocytochemistry; D007814:Larva; D008543:Melanins / Q000096:biosynthesis*; D014442:Monophenol Monooxygenase / Q000378:metabolism; D009997:Osmotic Pressure; D010670:Phenylthiourea / Q000494:pharmacology; D011691:Puromycin / Q000494:pharmacology; D014443:Tyrosine; D014561:Urochordata / Q000196:embryology*
chemical_list: D008543:Melanins; D014443:Tyrosine; D011691:Puromycin; D004295:Dihydroxyphenylalanine; D010670:Phenylthiourea; D004156:Catechol Oxidase; D014442:Monophenol Monooxygenase