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N-Acetyl-L-tyrosine is an amino acid, an N-acetyl derivative of tyrosine. It is used for parenteral nutrition and as a dietary supplement. [1] [2] [3] See also.
In addition to the common amino acid L-tyrosine, which is the para isomer (para-tyr, p-tyr or 4-hydroxyphenylalanine), there are two additional regioisomers, namely meta-tyrosine (also known as 3-hydroxyphenylalanine, L-m-tyrosine, and m-tyr) and ortho-tyrosine (o-tyr or 2-hydroxyphenylalanine), that occur in nature.
N-Methyltyramine (NMT), also known as 4-hydroxy-N-methylphenethylamine, is a human trace amine [1] [2] and natural phenethylamine alkaloid found in a variety of plants. [3] As the name implies, it is the N-methyl analog of tyramine , which is a well-known biogenic trace amine with which NMT shares many pharmacological properties.
The enzyme tyrosine hydroxylase (TH) converts the amino acid L-tyrosine into 3,4-dihydroxyphenylalanine (L-DOPA). The hydroxylation of L -tyrosine by TH results in the formation of the DA precursor L -DOPA, which is metabolized by aromatic L -amino acid decarboxylase (AADC; see Cooper et al., 2002 [ citation needed ] ) to the transmitter dopamine.
N-Acetylserotonin (NAS), also known as normelatonin, is a naturally occurring chemical intermediate in the endogenous production of melatonin from serotonin. [ 1 ] [ 2 ] It also has biological activity in its own right, including acting as a melatonin receptor agonist , an agonist of the TrkB , and having antioxidant effects.
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Acetyllysine (or acetylated lysine) is an acetyl-derivative of the amino acid lysine. There are multiple forms of acetyllysine: this article is about N-ε-acetyl-L-lysine; another form is N-α-acetyl-L-lysine. In proteins, the acetylation of lysine residues is an important mechanism of epigenetics.
In enzymology, a glucosamine-1-phosphate N-acetyltransferase (EC 2.3.1.157) is an enzyme that catalyzes the chemical reaction acetyl-CoA + alpha-D-glucosamine 1-phosphate ⇌ {\displaystyle \rightleftharpoons } CoA + N-acetyl-alpha-D-glucosamine 1-phosphate