2XQH

Crystal structure of an immunoglobulin-binding fragment of the trimeric autotransporter adhesin EibD


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.99 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.159 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The Structure of E. Coli Igg-Binding Protein D Suggests a General Model for Bending and Binding in Trimeric Autotransporter Adhesins.

Leo, J.C.Lyskowski, A.Hattula, K.Hartmann, M.D.Schwarz, H.Butcher, S.J.Linke, D.Lupas, A.N.Goldman, A.

(2011) Structure 19: 1021

  • DOI: 10.1016/j.str.2011.03.021
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The Escherichia coli Ig-binding (Eib) proteins are trimeric autotransporter adhesins (TAAs) and receptors for IgG Fc. We present the structure of a large fragment of the passenger domain of EibD, the first TAA structure to have both a YadA-like head ...

    The Escherichia coli Ig-binding (Eib) proteins are trimeric autotransporter adhesins (TAAs) and receptors for IgG Fc. We present the structure of a large fragment of the passenger domain of EibD, the first TAA structure to have both a YadA-like head domain and the entire coiled-coil stalk. The stalk begins as a right-handed superhelix, but switches handedness halfway down. An unexpected β-minidomain joins the two and inserts a ∼120° rotation such that there is no net twist between the beginning and end of the stalk. This may be important in folding and autotransport. The surprisingly large cavities we found in EibD and other TAAs may explain how TAAs bend to bind their ligands. We identified how IgA and IgG bind and modeled the EibD-IgG Fc complex. We further show that EibD promotes autoagglutination and biofilm formation and forms a fibrillar layer covering the cell surface making zipper-like contacts between cells.


    Organizational Affiliation

    Macromolecular Crystallography Group, Institute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
IMMUNOGLOBULIN-BINDING PROTEIN EIBD
A
281Enterobacteria phage P-EibDMutation(s): 0 
Gene Names: eibD
Find proteins for Q9MCI8 (Enterobacteria phage P-EibD)
Go to UniProtKB:  Q9MCI8
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
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: 1.99 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.159 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 48.950α = 90.00
b = 48.950β = 90.00
c = 409.600γ = 120.00
Software Package:
Software NamePurpose
XDSdata reduction
XDSdata scaling
PHENIXrefinement
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-07-20
    Type: Initial release