X-ray diffraction
2.46Å resolution

Crystal Structure of Polyphosphate Kinase from Meiothermus ruber bound to ADP and PPi


Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
AMP/ADP-polyphosphate phosphotransferase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 287 amino acids
Theoretical weight: 33.78 KDa
Source organism: Meiothermus ruber H328
Expression system: Escherichia coli BL21(DE3)
  • Canonical: M9XB82 (Residues: 1-267; Coverage: 100%)
Gene name: K649_10090
Sequence domains: Polyphosphate kinase 2 (PPK2)
Structure domains: P-loop containing nucleotide triphosphate hydrolases

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X06SA
Spacegroup: P43212
Unit cell:
a: 166.159Å b: 166.159Å c: 94.985Å
α: 90° β: 90° γ: 90°
R R work R free
0.193 0.191 0.234
Expression system: Escherichia coli BL21(DE3)