3NA7

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.248 

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: 10.1016/j.jmb.2010.08.051

  • 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 a ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HP0958
A
256N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE

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Download CCD File 
A
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
HEPES
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.248 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 172.720α = 90.00
b = 37.951β = 110.66
c = 66.056γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
SOLVEphasing
HKL-2000data reduction
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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