The House of Tudor was a royal house of Welsh and English origin, descended in the male line from the Tudors of Penmynydd.
Tyrosine (Tyr or Y) or 4-hydroxyphenylalanine is one of the 22 amino acids that are used by cells to synthesize proteins. It is a non-essential amino acid with a polar side group. Its codons are UAC and UAU.
Tyrosine is an essential amino acid involved in creating brain signaling molecules such as dopamine, and stress hormones like norepinephrine (noradrenaline), and epinephrine (adrenaline). While an essential amino acid, tyrosine can be made by the body if a person consumes enough of the amino acid phenylalanine.