X-ray diffraction
2.2Å resolution

Crystal structures of E.coli arginyl-trna synthetase (argrs) in complex with substrate Arg

Source organism: Escherichia coli K-12
Entry authors: Zhou M, Ye S, Stephen P, Zhang RG, Wang ED, Giege R, Lin SX

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Arginine--tRNA ligase Chains: A, B
Molecule details ›
Chains: A, B
Length: 586 amino acids
Theoretical weight: 65.78 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
  • Canonical: P11875 (Residues: 1-577; Coverage: 100%)
Gene names: JW1865, argS, b1876
Sequence domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 31-ID
Spacegroup: P21
Unit cell:
a: 49.727Å b: 244.51Å c: 52.46Å
α: 90° β: 90.69° γ: 90°
R R work R free
0.199 0.197 0.251
Expression system: Escherichia coli