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 1.3 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: 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 ...

    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
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Membrane fusion proteinA, B, C, D296Borreliella 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
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D 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