4cs4

X-ray diffraction
1.35Å resolution

Catalytic domain of Pyrrolysyl-tRNA synthetase mutant Y306A, Y384F in complex with AMPPNP

Released:

Function and Biology Details

Reaction catalysed:
ATP + L-pyrrolysine + tRNA(Pyl) = AMP + diphosphate + L-pyrrolysyl-tRNA(Pyl)
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-185817 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Pyrrolysine--tRNA ligase Chain: A
Molecule details ›
Chain: A
Length: 274 amino acids
Theoretical weight: 31.74 KDa
Source organism: Methanosarcina mazei
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8PWY1 (Residues: 188-454; Coverage: 59%)
Gene names: MM_1445, pylS
Sequence domains: tRNA synthetases class II core domain (F)
Structure domains:

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X06DA
Spacegroup: C2
Unit cell:
a: 102.075Å b: 44.533Å c: 64.359Å
α: 90° β: 99.66° γ: 90°
R-values:
R R work R free
0.15 0.148 0.176
Expression system: Escherichia coli