4KKU

Structure of BesA (Selenomethinone derivative - P212121)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.237 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history. 


Literature

Structure of an atypical periplasmic adaptor from a multidrug efflux pump of the spirochete Borrelia burgdorferi.

Greene, N.P., Hinchliffe, P., Crow, A., Ababou, A., Hughes, C., Koronakis, V.

(2013) FEBS Lett 587: 2984-2988

  • DOI: https://doi.org/10.1016/j.febslet.2013.06.056
  • Primary Citation of Related Structures:  
    4KKS, 4KKT, 4KKU

  • PubMed Abstract: 

    Periplasmic adaptor proteins are essential components of bacterial tripartite multidrug efflux pumps. Here we report the 2.35 Å resolution crystal structure of the BesA adaptor from the spirochete Borrelia burgdorferi solved using selenomethionine derivatized protein. BesA shows the archetypal linear, flexible, multi-domain architecture evident among proteobacteria and retains the lipoyl, β-barrel and membrane-proximal domains that interact with the periplasmic domains of the inner membrane transporter. However, it lacks the α-hairpin domain shown to establish extensive coiled-coil interactions with the periplasmic entrance helices of the outer membrane-anchored TolC exit duct. This has implications for the modelling of assembled tripartite efflux pumps.

    • Organizational Affiliation: 

    Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK.


Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Membrane fusion protein
A, B, C, D
296Borreliella burgdorferi B31Mutation(s): 0 
Gene Names: BB_0141
UniProt
Find proteins for O51166 (Borreliella burgdorferi (strain ATCC 35210 / DSM 4680 / CIP 102532 / B31))
Explore O51166 
Go to UniProtKB:  O51166
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO51166
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.237 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.74α = 90
b = 152.13β = 90
c = 155.49γ = 90
Software Package:
Software NamePurpose
MxCuBEdata collection
PHASERphasing
REFMACrefinement
MOSFLMdata reduction
Aimlessdata scaling

Structure Validation

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View more in-depth experimental data
Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-07-10
    Type: Initial release
  • Version 1.1: 2013-07-17
    Changes: Structure summary
  • Version 1.2: 2013-07-31
    Changes: Database references
  • Version 1.3: 2013-09-25
    Changes: Database references
  • Version 1.4: 2024-11-06
    Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary