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 
  • R-Value Observed: 0.281 

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
  • Primary Citation of Related Structures:  
    2W1B

  • 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 complex with deoxycholate at 3 ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ACRIFLAVIN RESISTANCE PROTEIN BA1049Escherichia coli K-12Mutation(s): 0 
Gene Names: acrBacrEb0462JW0451
Membrane Entity: Yes 
UniProt
Find proteins for P31224 (Escherichia coli (strain K12))
Explore P31224 
Go to UniProtKB:  P31224
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DXC
Query on DXC

Download Ideal Coordinates CCD File 
B [auth A](3ALPHA,5BETA,12ALPHA)-3,12-DIHYDROXYCHOLAN-24-OIC 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 
  • R-Value Observed: 0.281 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 145.49α = 90
b = 145.49β = 90
c = 515.181γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

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