<prompt> Amino acid required for conversion of norepinephrine to epinephrine:-LysinePhenyl-alanineMethionineTryptophan  <response>: Norepinephrine to Epinephrine conversion requires SAM S-Adenosyl Methionine. Enzyme involved is Phenylethanolamine N-methyl transferase. Coisol is the activator. Synthesis of Catecholamines Dopamine, NE and E from Tyrosine. SAM S - adenosyl methionine is synthesized from dietary methionine with the help of enzyme METHIONINE ADENOSYL TRANSFERASE MAT. 