Strain-specific differences in transcription of the gene for the epinephrine-synthesizing enzyme phenylethanolamine N-methyltransferase

Phenylethanolamine N-methyltransferase (PNMT), the enzyme which synthesizes the catecholamine epinephrine (adrenaline), may be regulated at many levels of expression. This study examines one level, the production of PNMT hnRNA, by measuring its rate of transcription in the rat adrenal gland and bovine adrenal medulla using an in vitro nuclear transcription run-on assay