Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 50.95 kDa 
• Atom Count: 2234 
• Residue Count: 303 
• Unique protein chains: 1

4MEE

Crystal structure of the transport unit of the autotransporter AIDA-I from Escherichia coli

• DOI: 10.2210/pdb4MEE/pdb

• Classification: PROTEIN BINDING
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-08-26 Released: 2014-06-04 
• Deposition Author(s): Gawarzewski, I., Tschapek, B., Hoeppner, A., Smits, S.H., Jose, J., Schmitt, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.306 
• R-Value Work: 0.248 
• R-Value Observed: 0.251 

Literature

Crystal structure of the transport unit of the autotransporter adhesin involved in diffuse adherence from Escherichia coli.

Gawarzewski, I., DiMaio, F., Winterer, E., Tschapek, B., Smits, S.H., Jose, J., Schmitt, L.

(2014) J Struct Biol 187: 20-29

• PubMed: 24841284 
• DOI: 10.1016/j.jsb.2014.05.003
• Structures With Same Primary Citation


• PubMed Abstract: 
  

Several serious gastrointestinal diseases, which are widespread all over the world, are caused by enteropathogenic Escherichia coli. The monomeric autotransporter AIDA-I (adhesin involved in diffuse adherence) represents an important virulence factor of these strains and is involved in adhesion, biofilm formation, aggregation and invasion into host cells. Here, we present the crystal structure of the transport unit of AIDA-I at 3.0Å resolution, which forms a 12-stranded β-barrel harboring the linker domain in its pore. Mutagenesis studies of the C-terminal amino acid demonstrated the great impact of this terminal residue on membrane integration of AIDA-I and passenger translocation.

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Organizational Affiliation: 

Institute of Biochemistry, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Diffuse adherence adhesin	A	469	Escherichia coli	Mutation(s): 0  Gene Names: aidA, aidA-I
Membrane protein Mpstruc	Group:  TRANSMEMBRANE PROTEINS: BETA-BARREL		Sub Group:  Outer Membrane Autotransporters	Protein:  AIDA-I autotransport unit (AIDA = adhesin involved in diffuse adherence)
Find proteins for Q03155 (Escherichia coli) Explore Q03155  Go to UniProtKB:  Q03155

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.306 
• R-Value Work: 0.248 
• R-Value Observed: 0.251 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.33	α = 90
b = 85.85	β = 90
c = 134.05	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
Rosetta	model building
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
Rosetta	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-08-26 
• Released Date: 2014-06-04 
Deposition Author(s): Gawarzewski, I., Tschapek, B., Hoeppner, A., Smits, S.H., Jose, J., Schmitt, L.

Revision History 

• Version 1.0: 2014-06-04
  Type: Initial release
  
• Version 1.1: 2014-07-23
  Changes: Database references