PDBe 4b9q

X-ray diffraction
2.4Å resolution

Open conformation of ATP-bound Hsp70 homolog DnaK


Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Chaperone protein DnaK Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 605 amino acids
Theoretical weight: 66.27 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
  • Canonical: P0A6Y8 (Residues: 1-605; Coverage: 95%)
Gene names: JW0013, b0014, dnaK, groP, grpF, seg
Sequence domains: Hsp70 protein
Structure domains:

Ligands and Environments

2 bound ligands:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID23-1
Spacegroup: C2
Unit cell:
a: 202.331Å b: 77.47Å c: 182.96Å
α: 90° β: 101.71° γ: 90°
R R work R free
0.199 0.196 0.239
Expression system: Escherichia coli