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Pyrrolysine (symbol Pyl or O;
encoded by the 'amber' stop
codon UAG) is an α-amino acid that is used in the
biosynthesis of
proteins in some methanogenic...
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similar cysteine, and parti****tes in
several unique enzymatic reactions.
Pyrrolysine (Pyl, O) is
another amino acid not
encoded in DNA, but
synthesized into...
- in the
standard genetic code and an
additional 2 (selenocysteine and
pyrrolysine) that can be
incorporated by
special translation mechanisms. In contrast...
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glutamic acid, serine, and
selenocysteine (considered the 21st
amino acid).
Pyrrolysine (considered the 22nd
amino acid),
which is
proteinogenic only in certain...
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Pyrrolysine—tRNAPyl
ligase (EC 6.1.1.26, PylS, pyrrolysyl-tRNA synthetase) is an
enzyme with
systematic name L-
pyrrolysine:tRNAPyl
ligase (AMP-forming)...
- code for
pyrrolysine.
Selenocysteine came to be seen as the 21st
amino acid, and
pyrrolysine as the 22nd. Both
selenocysteine and
pyrrolysine may be present...
- In biology, the
PYLIS downstream sequence (PYLIS:
pyrrolysine insertion sequence) is a stem-loop
structure that
appears on some mRNA sequences. This structural...
-
incorporated into some
proteins at a UGA codon,
which is
normally a stop codon.
Pyrrolysine is
incorporated into some
proteins at a UAG codon. For instance, in some...
- beta-lactam
antibiotic MTSL, a
chemical used for
certain NMR
experiments Pyrrolysine, an
unusual proteinogenic amino acid 1-Pyrroline-5-carboxylic acid, a...
- However,
there are two
extra proteinogenic amino acids:
selenocysteine and
pyrrolysine.
These non-standard
amino acids do not have a
dedicated codon, but are...
