these findings show that the phosphorylation of tyrosine hydroxylase in intact cells is more complex than predicted from in vitro results , that at least two protein kinases are involved in the secretagogue-induced phosphorylation of tyrosine hydroxylase , and that the regulation of catecholamine biosynthesis , in response to phosphorylation , appears to involve both tyrosine hydroxylase activation and other mechanisms .
C0033640
protein kinases
C0031715
phosphorylation