3NA7

2.2 Angstrom Structure of the HP0958 Protein from Helicobacter pylori CCUG 17874


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.251 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

The 2.2-A Structure of the HP0958 Protein from Helicobacter pylori Reveals a Kinked Anti-Parallel Coiled-Coil Hairpin Domain and a Highly Conserved Zn-Ribbon Domain

Caly, D.L.O'Toole, P.W.Moore, S.A.

(2010) J Mol Biol 403: 405-419

  • DOI: https://doi.org/10.1016/j.jmb.2010.08.051
  • Primary Citation of Related Structures:  
    3NA7

  • PubMed Abstract: 

    We have determined the 2.2-Å structure of the HP0958 protein from the human gastric pathogen Helicobacter pylori. HP0958 is essential for flagellum formation and motility. It functions as a chaperone for RpoN (σ(54)) and also controls the stability and translation of mRNA for the major flagellin subunit FlaA. The protein is composed of a highly elongated and kinked coiled-coil hairpin domain (residues 1-170), followed by a C(4) Zn-ribbon domain (residues 174-238). The Zn-ribbon domain is rich in aromatic and positively charged amino acid residues. Electrophoretic mobility shift assays identified residues in a positively charged region of the Zn-ribbon domain of HP0958 whose mutation alters the mobility of an HP0958-flaA mRNA complex. Mutation of surface residues in the coiled-coil domain did not result in an observable change in the mobility of the HP0958-flaA transcript complex. The data thus suggest the arrangement of HP0958 into distinct structural and functional domains.


  • Organizational Affiliation

    Department of Microbiology, University College Cork, Cork, Ireland.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
HP0958256Helicobacter pylori NCTC 11638Mutation(s): 0 
Gene Names: HP0958
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.251 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 172.72α = 90
b = 37.951β = 110.66
c = 66.056γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SOLVEphasing
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-09-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance