PDBe 4ezn

X-ray diffraction
1.8Å resolution

Crystal structure of the substrate binding domain of E.coli DnaK in complex with pyrrhocoricin


Function and Biology Details

Structure analysis Details

Assemblies composition:
hetero tetramer
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Chaperone protein DnaK Chains: A, B
Molecule details ›
Chains: A, B
Length: 219 amino acids
Theoretical weight: 23.82 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
  • Canonical: P0A6Y8 (Residues: 389-607; Coverage: 34%)
Gene names: JW0013, b0014, dnaK, groP, grpF, seg
Structure domains:
Pyrrhocoricin Chains: C, D
Molecule details ›
Chains: C, D
Length: 20 amino acids
Theoretical weight: 2.34 KDa
Source organism: Pyrrhocoris apterus
Expression system: Not provided
  • Canonical: P37362 (Residues: 1-20; Coverage: 100%)

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.1
Spacegroup: P21212
Unit cell:
a: 77.58Å b: 160.272Å c: 44.928Å
α: 90° β: 90° γ: 90°
R R work R free
0.198 0.197 0.238
Expression systems:
  • Escherichia coli
  • Not provided