1eqr

X-ray diffraction
2.7Å resolution

CRYSTAL STRUCTURE OF FREE ASPARTYL-TRNA SYNTHETASE FROM ESCHERICHIA COLI

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-149469 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Aspartate--tRNA ligase Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 590 amino acids
Theoretical weight: 66 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P21889 (Residues: 1-590; Coverage: 100%)
Gene names: JW1855, aspS, b1866, tls
Sequence domains:
Structure domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: LURE BEAMLINE DW32
Spacegroup: C2
Unit cell:
a: 117.749Å b: 161.958Å c: 131.599Å
α: 90° β: 110.36° γ: 90°
R-values:
R R work R free
0.201 0.198 0.269
Expression system: Escherichia coli