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.
How Receptor Tyrosine Kinases are Activated [edit]. Receptor tyrosine kinases is a transmembrane structure that anchors into the membrane. The structure consists of ligand-binding domain in the outside and the kinase domain in the inside of the cell. When received the signal, the inside domain adds phosphate group to tyrosine.