pyrrolysine
Noun
Meaning
pyrrolysine (uncountable)
(biochemistry) An amino acid found in methanogenic bacteria.
Examples
Selenocysteine is now viewed as the 21st amino acid, and pyrrolysine is viewed as the 22nd.
Transcription of this codon is enabled by the proximity of the SECIS element (SElenoCysteine Incorporation Sequence). citation The UAG codon can translate into pyrrolysine in a similar manner.