Encyclopedia > Pyrrolysine

  Article Content

Pyrrolysine

Pyrrolysine is an amino acid used by some bacteria and archaea in enzymes that are part of their methane-producing metabolisms. It is coded for by a UAG codon, which is normally a stop codon named "amber" but whose meaning is modified by the presence of a specific downstream sequence which forms a loop in the mRNA, forcing the incorporation of pyrrolysine instead of terminating transcription.

See also selenocysteine, an amino acid with a similar mechanism of encoding in other organisms.

external links:



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
1904

... - Jimmy Dorsey, bandleader (+ 1957) March 1 - Glenn Miller, bandleader (+ 1944) March 2 - Dr. Seuss, author (+ 1991) March 8 - Victor de Kowa[?], actor (+ 1973) ...

 
 
 
This page was created in 41.6 ms