The biosynthesis of catecholamines in two genera of protozoa.
نویسندگان
چکیده
Norepinephrine was isolated from the flagellated protozoan, Crithidia jasciculata, and the ciliated protozoan, Tetrahymena pyrijormis, the former having less than onehalf that of the latter. Tetrohymena also synthesizes epinephrine, whereas this substance could not be detected in Crithidia. Isotopically labeled phenylalanine, tyrosine, and dihydroxyphenylalanine were significantly incorporated into the catecholamines in Tetrahymena, while only tyrosine and dihydroxyphenylalanine were incorporated in Crithidia, owing to its lack of a phenylalanine-hydroxylating system.
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ورودعنوان ژورنال:
- The Journal of biological chemistry
دوره 241 11 شماره
صفحات -
تاریخ انتشار 1966