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 a triprotic, dibasic amino acid with pKa of 2.17, 9.19, and 10.47 The first proton is removed from the carboxylic acid, the second from the ammonium group. The third proton, with a pKa of 10.47, is the phenolic proton from the amino acid side chain.This case is of interest because the acid is dibasic.t the first equivalence point, [H3PO4] approaches zero. This occurs when [H2PO4-] is a maximum. One can see this point in the relative concentration plot. It occurs at a pH that is halfway between the two points with maximum buffer capacity.