2W1B

The structure of the efflux pump AcrB in complex with bile acid


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.85 Å
  • R-Value Free: 0.349 
  • R-Value Work: 0.278 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The Structure of the Efflux Pump Acrb in Complex with Bile Acid.

Drew, D.Klepsch, M.M.Newstead, S.Flaig, R.De Gier, J.W.Iwata, S.Beis, K.

(2008) Mol.Membr.Biol. 25: 677

  • DOI: 10.1080/09687680802552257

  • PubMed Abstract: 
  • Gastrointestinal bacteria, like Escherichia coli, must remove bile acid to survive in the gut. Bile acid removal in E. coli is thought to be mediated primarily by the multidrug efflux pump, AcrB. Here, we present the structure of E. coli AcrB in comp ...

    Gastrointestinal bacteria, like Escherichia coli, must remove bile acid to survive in the gut. Bile acid removal in E. coli is thought to be mediated primarily by the multidrug efflux pump, AcrB. Here, we present the structure of E. coli AcrB in complex with deoxycholate at 3.85 A resolution. All evidence suggests that bile acid is transported out of the cell via the periplasmic vestibule of the AcrAB-TolC complex.


    Related Citations: 
    • Crystal Structure of Bacterial Multidrug Efflux Transporter Acrb.
      Murakami, S.,Nakashima, R.,Yamashita, E.,Yamaguchi, A.
      (2002) Nature 419: 587


    Organizational Affiliation

    Division of Molecular Biosciences, Membrane Protein Crystallography Group and Membrane Protein Laboratory, Imperial College, London, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ACRIFLAVIN RESISTANCE PROTEIN B
A
1049Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: acrB (acrE)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Multi-Drug Efflux Transporters
Protein: 
AcrB bacterial multi-drug efflux transporter
Find proteins for P31224 (Escherichia coli (strain K12))
Go to UniProtKB:  P31224
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DXC
Query on DXC

Download SDF File 
Download CCD File 
A
(3ALPHA,5BETA,12ALPHA)-3,12-DIHYDROXYCHOLAN-24-OIC ACID
DEOXYCHOLIC ACID
C24 H40 O4
KXGVEGMKQFWNSR-LLQZFEROSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.85 Å
  • R-Value Free: 0.349 
  • R-Value Work: 0.278 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 145.490α = 90.00
b = 145.490β = 90.00
c = 515.181γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALAdata scaling
PHASERphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-12-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance