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  2. N-Acetyl-L-tyrosine - Wikipedia

    en.wikipedia.org/wiki/N-Acetyl-L-tyrosine

    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.

  3. Chymotrypsin - Wikipedia

    en.wikipedia.org/wiki/Chymotrypsin

    The main substrates of chymotrypsin are peptide bonds in which the amino acid N-terminal to the bond is a tryptophan, tyrosine, phenylalanine, or leucine. Like many proteases, chymotrypsin also hydrolyses amide bonds in vitro, a virtue that enabled the use of substrate analogs such as N-acetyl-L-phenylalanine p-nitrophenyl amide for enzyme assays.

  4. Tyrosine - Wikipedia

    en.wikipedia.org/wiki/Tyrosine

    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.

  5. N-acetyltransferase - Wikipedia

    en.wikipedia.org/wiki/N-Acetyltransferase

    N-acetyltransferase (NAT) is an enzyme that catalyzes the transfer of acetyl groups from acetyl-CoA to arylamines, arylhydroxylamines and arylhydrazines. [ 1 ] [ 2 ] [ 3 ] They have wide specificity for aromatic amines , particularly serotonin , and can also catalyze acetyl transfer between arylamines without CoA.

  6. N-Acetylglutamate synthase - Wikipedia

    en.wikipedia.org/wiki/N-Acetylglutamate_synthase

    A simplified reaction mechanism for N-acetylglutamate synthase (NAGS). Two mechanisms for N-acetyltransferase function have been proposed: a two-step, ping-pong mechanism involving transfer of the relevant acetyl group to an activated cysteine residue [10] and a one-step mechanism through direct attack of the amino nitrogen on the carbonyl group. [11]

  7. Tyrosine aminotransferase - Wikipedia

    en.wikipedia.org/wiki/Tyrosine_aminotransferase

    L-tyrosine + 2-oxoglutarate 4-hydroxyphenylpyruvate + L-glutamate In humans, the tyrosine aminotransferase protein is encoded by the TAT gene . [ 7 ] A deficiency of the enzyme in humans can result in what is known as type II tyrosinemia , wherein there is an abundance of tyrosine as a result of tyrosine failing to undergo an aminotransferase ...

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