16870-43-2

White to off-white crystalline powder

L-Tyrosine Hydrochloride is the salt form of L-Tyrosine (T899975), is one of the 22 proteinogenic amino acids that are used by cells to synthesize proteins. L-Tyrosine is biologically converted from L-phenylalanine and is in turn is converted to L-DOPA and further converted into the neurotransmitters such as dopamine, norepinephrine, and epinephrine.

Tyrosine is a nonessential amino acid found in mammal, fish and birds. It participates in protein modification, such as phosphorylation, nitrosation and sulfation. It is involved in immune response regulation and prevents the generation of inflammatory cytokines and superoxide. Tyrosine serves as a precursor for epinephrine, norepinephrine, dopamine, thyroid hormones and melanin biosynthesis. Tyrosine phosphorylation is associated with a number of cellular processes such as cell proliferation and migration, development of the embryo, cellular metabolism and transcription. Tyrosine phosphorylation also aids activation of the enzymatic function of a protein.