1PIH

THE THREE DIMENSIONAL STRUCTURE OF THE PARAMAGNETIC PROTEIN HIPIP I FROM E.HALOPHILA THROUGH NUCLEAR MAGNETIC RESONANCE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 15 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The three-dimensional structure in solution of the paramagnetic high-potential iron-sulfur protein I from Ectothiorhodospira halophila through nuclear magnetic resonance.

Banci, L.Bertini, I.Eltis, L.D.Felli, I.C.Kastrau, D.H.Luchinat, C.Piccioli, M.Pierattelli, R.Smith, M.

(1994) Eur J Biochem 225: 715-725

  • DOI: 10.1111/j.1432-1033.1994.00715.x
  • Primary Citation of Related Structures:  
    1PIH, 1PIJ

  • PubMed Abstract: 
  • The three-dimensional structure in solution of reduced recombinant high-potential iron-sulfur protein iso-I from Ectothiorhodospira halophila was determined using 948 relevant interproton NOEs out of the 1246 observed NOEs. The determination was accomplished using the XEASY program for spectral analysis and the distance geometry (DG) program DIANA for generation of the structure as described by Wüthrich [Wüthrich, K ...

    The three-dimensional structure in solution of reduced recombinant high-potential iron-sulfur protein iso-I from Ectothiorhodospira halophila was determined using 948 relevant interproton NOEs out of the 1246 observed NOEs. The determination was accomplished using the XEASY program for spectral analysis and the distance geometry (DG) program DIANA for generation of the structure as described by Wüthrich [Wüthrich, K. (1989) Acc. Chem. Res. 22, 36-44]. The FeS cluster was simulated using an amino acid residue constructed for the present work from a cysteinyl residue with an iron and a sulfur atom attached to the terminal thiol. The family of structures obtained from distance geometry were subjected to energy minimization and molecular dynamics simulations using previously defined force field parameters. The quality of these structures at each stage of the refinement process is discussed with respect to the dihedral angle order parameter and the root-mean-square deviation of the atomic coordinates. The latter values for the backbone atoms vary from 67 pm for the distance-geometry structures to 60 pm for the energy-minimized structures to 51 pm for the structures subjected to restrained molecular dynamics. Finally, the structure in best agreement with the NOE constraints has been further treated with extensive restrained molecular dynamics in water. The solution structure is well defined and is very similar to the available X-ray structure. We do not know of any previous determination of the structure of a paramagnetic protein in solution by NMR. The effect of paramagnetism on the quality of the structure determination is discussed.


    Related Citations: 
    • Sequence Specific Assignment of the 1H and 15N Nuclear Magnetic Resonance Spectra of the Reduced Recombinant High Potential Iron Sulfur Protein (Hipip) I from Ectothiorhodospira Halophila
      Bertini, I., Felli, I., Kastrau, D.H.W., Luchinat, C., Piccioli, M., Viezzoli, M.S.
      (1994) Eur J Biochem 225: 703

    Organizational Affiliation

    Department of Chemistry, University of Florence, Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HIGH POTENTIAL IRON SULFUR PROTEINA73Halorhodospira halophilaMutation(s): 0 
Gene Names: POTENTIALhip1
Find proteins for P04168 (Halorhodospira halophila)
Explore P04168 
Go to UniProtKB:  P04168
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SF4
Query on SF4

Download Ideal Coordinates CCD File 
B [auth A]IRON/SULFUR CLUSTER
Fe4 S4
LJBDFODJNLIPKO-VKOJMFJBAC
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 15 
  • OLDERADO: 1PIH Olderado

Structure Validation

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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: Version format compliance