› 2haw

X-ray diffraction
1.75Å resolution

Crystal structure of family II Inorganic pyrophosphatase in complex with PNP

Released:
DOI: 10.2210/pdb2haw/pdb
PDB entry 2haw coloured by chain, front view.
PDB entry 2haw coloured by chain, side view.
PDB entry 2haw coloured by chain, top view.
Source organism: Bacillus subtilis
Primary publication:
A trimetal site and substrate distortion in a family II inorganic pyrophosphatase.
Fabrichniy IP, Lehtiö L, Tammenkoski M, Zyryanov AB, Oksanen E, Baykov AA, Lahti R, Goldman A
J Biol Chem 282 1422-31 (2007)
PMID: 17095506

Function and Biology Details

Reaction catalysed: 
Diphosphate + H(2)O = 2 phosphate
Biochemical function:
Biological process:
  • not assigned
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-153417 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Manganese-dependent inorganic pyrophosphatase Chains: A, B
Molecule details ›
Chains: A, B
Length: 309 amino acids
Theoretical weight: 34.03 KDa
Source organism: Bacillus subtilis
Expression system: Escherichia coli
UniProt:
  • Canonical: P37487 (Residues: 1-309; Coverage: 100%)
Gene names: BSU40550, ppaC
Sequence domains:
Structure domains:

Ligands and Environments

8 bound ligands:
Ligand MG 8 x MG
Ligand F 2 x F
Ligand SO4 4 x SO4
Ligand CL 1 x CL
Ligand PG4 2 x PG4
Ligand 2PN 2 x 2PN
Ligand 1PE 1 x 1PE
Ligand GOL 3 x GOL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P212121
Unit cell:
a: 60.011Å b: 115.867Å c: 147.874Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.167 0.166 0.186
Expression system: Escherichia coli

Quick links

Citations

4 review citations

Inorganic pyrophosphatases: one substrate, three mechanisms.
Kajander et al. (2013)
3 more

5 mentions without citation

Structural and functional insights into the DNA replication factor Cdc45 reveal an evolutionary relationship to the DHH family of phosphoesterases.
Krastanova et al. (2012)
4 more