1IGP

X-RAY CRYSTALLOGRAPHIC STUDIES OF RECOMBINANT INORGANIC PYROPHOSPHATASE FROM ESCHERICHIA COLI


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Observed: 0.220 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

X-ray crystallographic studies of recombinant inorganic pyrophosphatase from Escherichia coli.

Oganessyan, V.Y.u.Kurilova, S.A.Vorobyeva, N.N.Nazarova, T.I.Popov, A.N.Lebedev, A.A.Avaeva, S.M.Harutyunyan, E.H.

(1994) FEBS Lett 348: 301-304

  • DOI: 10.1016/0014-5793(94)00605-9
  • Primary Citation of Related Structures:  
    1IGP

  • PubMed Abstract: 
  • An E. coli inorganic pyrophosphatase overproducer and a method for a large-scale production of the homogeneous enzyme are described. The inorganic pyrophosphatase was crystallized in the form containing one subunit of a homohexameric molecule per asymmetric unit: space group R32, a = 110 ...

    An E. coli inorganic pyrophosphatase overproducer and a method for a large-scale production of the homogeneous enzyme are described. The inorganic pyrophosphatase was crystallized in the form containing one subunit of a homohexameric molecule per asymmetric unit: space group R32, a = 110.4 A, c = 76.8 A. The electron density map to 2.5 A resolution phased with Eu- and Hg-derivatives (figure of merit, = 0.51) was improved by the solvent flattening procedure ( = 0.77). The course of the polypeptide chain and the secondary structure elements, intersubunit contacts and positions of the active sites were characterized. Homology with S. cerevisiae inorganic pyrophosphatase structure was found.


    Related Citations: 
    • Crystal Structure of Ferric Complex of the Yellow Lupin Leghemoglobin with Isoquinoline at 1.8 Angstroms Resolution
      Safonova, T.N., Teplyakov, A.V., Obmolova, G.V., Popov, A.N., Kuranova, I.P., Harutyunyan, E.G.
      (1991) Bioorg Khim 17: 1605
    • X-Ray Structure of Ferrous Complexes of the Yellow Lupin Leghemoglobin with Co and No at 1.8 Angstroms Resolution
      Obmolova, G.V., Safonova, T.N., Teplyakov, A.V., Popov, A.N., Kuranova, I.P., Harutyunyan, E.G., Vainshtein, B.K.
      (1988) Bioorg Khim 14: 1509
    • Cloning and Characterization of the Gene Encoding Inorganic Pyrophosphatase of Escherichia Coli K 12
      Lahti, R., Pitkaranta, T., Valve, E., Ilta, I., Kukko-Kalske, E., Heinonen, J.
      (1988) Z Angew Math Phys 170: 5901

    Organizational Affiliation

    Institute of Crystallography, Russian Academy of Sciences, Moscow.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
INORGANIC PYROPHOSPHATASE A175Escherichia coliMutation(s): 0 
EC: 3.6.1.1
Find proteins for P0A7A9 (Escherichia coli (strain K12))
Explore P0A7A9 
Go to UniProtKB:  P0A7A9
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Observed: 0.220 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 110.4α = 90
b = 110.4β = 90
c = 76.8γ = 120
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-12-20
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance