X-ray diffraction
2.5Å resolution

Crystal Structure of the E.coli Polyphosphate Kinase in complex with AMPPNP


Function and Biology Details

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo tetramer
Entry contents:
1 distinct polypeptide molecule
Polyphosphate kinase Chains: A, B
Molecule details ›
Chains: A, B
Length: 687 amino acids
Theoretical weight: 80.41 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
  • Canonical: P0A7B1 (Residues: 2-688; Coverage: 100%)
Gene names: JW2486, b2501, ppk
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P42212
Unit cell:
a: 152Å b: 152Å c: 150Å
α: 90° β: 90° γ: 90°
R R work R free
0.337 0.248 0.274
Expression system: Escherichia coli