Lecture : Bio Notes 206 - Tyrosine
Document Summary
Tyrosine is one of the 20 amino acids that make up proteins and is classified as a non-essential amino acid, meaning that it can be synthesized in the body. It has a hydroxyl (-oh) group and an aromatic ring in its side chain, which makes it a polar, uncharged amino acid with unique properties. Tyrosine plays several important roles in the body. It is involved in the synthesis of several important molecules, including dopamine, norepinephrine, epinephrine, and thyroid hormones. These molecules are important for regulating mood, appetite, metabolism, and other physiological functions. In addition to its role in the synthesis of neurotransmitters and hormones, tyrosine is also involved in protein synthesis and acts as a precursor to the amino acid phenylalanine. Tyrosine can be converted to phenylalanine by the enzyme phenylalanine hydroxylase, which is important for individuals with phenylketonuria (pku), a genetic disorder that impairs the metabolism of phenylalanine.
