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 4ZIB
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Probing the active site tryptophan of Staphylococcus aureus thioredoxin with an analog.
Englert, M., Nakamura, A., Wang, Y.S., Eiler, D., Soll, D., Guo, L.T.
Nucleic Acids Res.
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