5J6Q

Cwp8 from Clostridium difficile


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The CWB2 Cell Wall-Anchoring Module Is Revealed by the Crystal Structures of the Clostridium difficile Cell Wall Proteins Cwp8 and Cwp6.

Usenik, A.Renko, M.Mihelic, M.Lindic, N.Borisek, J.Perdih, A.Pretnar, G.Muller, U.Turk, D.

(2017) Structure 25: 514-521

  • DOI: 10.1016/j.str.2016.12.018
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Bacterial cell wall proteins play crucial roles in cell survival, growth, and environmental interactions. In Gram-positive bacteria, cell wall proteins include several types that are non-covalently attached via cell wall binding domains. Of the two c ...

    Bacterial cell wall proteins play crucial roles in cell survival, growth, and environmental interactions. In Gram-positive bacteria, cell wall proteins include several types that are non-covalently attached via cell wall binding domains. Of the two conserved surface-layer (S-layer)-anchoring modules composed of three tandem SLH or CWB2 domains, the latter have so far eluded structural insight. The crystal structures of Cwp8 and Cwp6 reveal multi-domain proteins, each containing an embedded CWB2 module. It consists of a triangular trimer of Rossmann-fold CWB2 domains, a feature common to 29 cell wall proteins in Clostridium difficile 630. The structural basis of the intact module fold necessary for its binding to the cell wall is revealed. A comparison with previously reported atomic force microscopy data of S-layers suggests that C. difficile S-layers are complex oligomeric structures, likely composed of several different proteins.


    Organizational Affiliation

    Department of Biochemistry, Molecular and Structural Biology, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia; Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins (CIPKeBiP), Jamova cesta 39, 1000 Ljubljana, Slovenia. Electronic address: dusan.turk@ijs.si.,National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia.,Department of Biochemistry, Molecular and Structural Biology, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia; Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins (CIPKeBiP), Jamova cesta 39, 1000 Ljubljana, Slovenia.,Macromolecular Crystallography Group, Helmholtz Zentrum for Materials and Energy Berlin, Albert-Einstein-Straße 15, 12489 Berlin, Germany.,Department of Biochemistry, Molecular and Structural Biology, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cell wall binding protein cwp8
A
595Peptoclostridium difficile (strain 630)Mutation(s): 0 
Gene Names: cwp8
Find proteins for Q183N4 (Peptoclostridium difficile (strain 630))
Go to UniProtKB:  Q183N4
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.229 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 45.454α = 97.25
b = 63.432β = 100.53
c = 86.407γ = 91.96
Software Package:
Software NamePurpose
ARPmodel building
MAINrefinement
SHELXDEphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Slovenian research agencySloveniaP1-0048
Ministry of Science and TechnologySloveniaOP13.1.1.2.02.0005

Revision History 

  • Version 1.0: 2017-02-08
    Type: Initial release
  • Version 1.1: 2017-03-22
    Type: Data collection, Database references