4K1P

Structure of the NheA component of the Nhe toxin from Bacillus cereus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.212 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of the NheA Component of the Nhe Toxin from Bacillus cereus: Implications for Function.

Ganash, M.Phung, D.Sedelnikova, S.E.Lindback, T.Granum, P.E.Artymiuk, P.J.

(2013) Plos One 8: e74748-e74748

  • DOI: 10.1371/journal.pone.0074748

  • PubMed Abstract: 
  • The structure of NheA, a component of the Bacillus cereus Nhe tripartite toxin, has been solved at 2.05 Å resolution using selenomethionine multiple-wavelength anomalous dispersion (MAD). The structure shows it to have a fold that is similar to the B ...

    The structure of NheA, a component of the Bacillus cereus Nhe tripartite toxin, has been solved at 2.05 Å resolution using selenomethionine multiple-wavelength anomalous dispersion (MAD). The structure shows it to have a fold that is similar to the Bacillus cereus Hbl-B and E. coli ClyA toxins, and it is therefore a member of the ClyA superfamily of α-helical pore forming toxins (α-PFTs), although its head domain is significantly enlarged compared with those of ClyA or Hbl-B. The hydrophobic β-hairpin structure that is a characteristic of these toxins is replaced by an amphipathic β-hairpin connected to the main structure via a β-latch that is reminiscent of a similar structure in the β-PFT Staphylococcus aureus α-hemolysin. Taken together these results suggest that, although it is a member of an archetypal α-PFT family of toxins, NheA may be capable of forming a β rather than an α pore.


    Related Citations: 
    • Crystallization and preliminary crystallographic analysis of the NheA component of the Nhe toxin from Bacillus cereus.
      Phung, D.,Ganash, M.,Sedelnikova, S.E.,Lindback, T.,Granum, P.E.,Artymiuk, P.J.
      (2012) Acta Crystallogr.,Sect.F 68: 1073


    Organizational Affiliation

    The Krebs Institute, Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NheA
A, B, C, D, E, F, G, H
360Bacillus cereusGene Names: nheA
Find proteins for Q3Y6N6 (Bacillus cereus)
Go to UniProtKB:  Q3Y6N6
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A, B, D, E, G
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.212 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 309.008α = 90.00
b = 58.242β = 110.61
c = 172.999γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
SHELXSphasing
PDB_EXTRACTdata extraction
ADSCdata collection
xia2data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-09-18
    Type: Initial release
  • Version 1.1: 2013-10-02
    Type: Database references