Encyclopedia > Phenylalanine

  Article Content


The amino acid Phenylalanine exists in two forms, the d- and l- forms. L-Phenylalanine(LPA, C9H12NO2) is a neutral amino acid found in proteins, coded for by DNA. Its mirror image, D-phenylalanine (DPA), can be synthesized artificially.

L-phenylalanine is used in the human body, where it is an essential amino acid. L-Phenylalanine can also be converted into tyrosine. Tyrosine is converted into L-dopa[?], norepinephrine, and epinephrine. D-phenylalanine can only be converted into phenylethylamine[?].

The genetic disorder phenylketonuria is an inability to metabolize phenylalanine.

The synthesized mix DL-Phenylalanine[?](DLPA), which is a combination of the D- and L- forms, is used as a nutritional supplement.

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
Northwest Harbor, New York

... householder with no husband present, and 30.7% are non-families. 22.6% of all households are made up of individuals and 8.2% have someone living alone who is 65 years ...

This page was created in 38.4 ms