1kmm

X-ray diffraction
2.6Å resolution

HISTIDYL-TRNA SYNTHETASE COMPLEXED WITH HISTIDYL-ADENYLATE

Released:
Source organism: Escherichia coli
Primary publication:
The first step of aminoacylation at the atomic level in histidyl-tRNA synthetase.
Proc Natl Acad Sci U S A 94 7144-9 (1997)
PMID: 9207058

Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-158128 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Histidine--tRNA ligase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 424 amino acids
Theoretical weight: 47.09 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P60906 (Residues: 1-424; Coverage: 100%)
Gene names: JW2498, b2514, hisS
Sequence domains:
Structure domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SIEMENS, LURE BEAMLINE DW32
Spacegroup: P1
Unit cell:
a: 61.4Å b: 110.7Å c: 108.7Å
α: 115° β: 97.4° γ: 90°
R-values:
R R work R free
0.221 0.221 0.297
Expression system: Escherichia coli