Encyclopedia > Phenylalanine

  Article Content

Phenylalanine

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
Waltzing Matilda

... even earlier version used the term "A-roving Australia" rather than "waltzing matilda". However, he was talked out of using this. History The song was written in ...