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 amino acid, which is a building block of protein that occurs naturally in the body. Tyrosine can also be found in certain foods such as meat, fish, eggs, dairy products, beans, nuts, oats, and wheat. Some people have low levels of tyrosine in their bodies because of a hereditary condition called phenylketonuria (PKU).