TianJia Food Additive Manufacturer L-Tyrosine

l-tyrosine

brief introduction

Tyrosine (abbreviated as Tyr or Y) or 4-hydroxyphenylalanine is one of the 22 amino acids used by cells to synthesize proteins. It can be used to synthesize proteins in cells, with the codons UAC and UAU. It is a non essential amino acid that contains polar side groups and can be synthesized by the human body. The word 'tyrosine' comes from the Greek tyros, meaning cheese. In the early 19th century, it was first discovered by German chemist Eustus von Libich in casein cheese, and when used as a functional or side group, it is called tyrosine.

function

In addition to being a protein amino acid, tyrosine plays a special role in signal transduction in proteins by relying on phenolic functional groups. Its function is as a receptor for phosphate groups transferred by protein kinases (so-called tyrosine kinase receptors), while the phosphorylation of hydroxyl groups alters the activity of the target protein.

Tyrosine also plays an important role in photosynthesis, serving as an electron provider in the reduction reaction of oxidized chlorophyll in chloroplasts (Photosystem II), deprotonation of phenolic OH groups, and finally reduction by four core manganese clusters in Photosystem II.

Dietary sources

Tyrosine can be synthesized from phenylalanine in the body and can be found in many high protein foods such as chicken, turkey, fish, milk, yogurt, cheese, cheese, peanuts, almonds, pumpkin seeds, sesame, soybeans, lima beans, avocados, and bananas.