CATH Classification

Domain Context

CATH Clusters

Superfamily Bira Bifunctional Protein; Domain 2
Functional Family

Enzyme Information

6.1.1.26
Pyrrolysine--tRNA(Pyl) ligase.
based on mapping to UniProt Q8PWY1
ATP + L-pyrrolysine + tRNA(Pyl) = AMP + diphosphate + L-pyrrolysyl- tRNA(Pyl).
-!- In organisms such as Methanosarcina barkeri that incorporate the modified amino acid pyrrolysine (Pyl) into certain methylamine methyltransferases, an unusual tRNA(Pyl), with a CUA anticodon, can be charged directly with pyrrolysine by this class II aminoacyl- -tRNA ligase. -!- Specific for pyrrolysine as substrate as it cannot be replaced by lysine or any of the other natural amino acids.

UniProtKB Entries (1)

Q8PWY1
PYLS_METMA
Methanosarcina mazei Go1
Pyrrolysine--tRNA ligase

PDB Structure

PDB 3QTC
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Stereochemical Basis for Engineered Pyrrolysyl-tRNA Synthetase and the Efficient in Vivo Incorporation of Structurally Divergent Non-native Amino Acids.
Takimoto, J.K., Dellas, N., Noel, J.P., Wang, L.
Acs Chem.Biol.
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