4KKU | pdb_00004kku

Structure of BesA (Selenomethinone derivative - P212121)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 
    0.264 (Depositor), 0.259 (DCC) 
  • R-Value Work: 
    0.236 (Depositor) 
  • R-Value Observed: 
    0.237 (Depositor) 

wwPDB Validation 3D Report Full Report

Validation slider image for 4KKU

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 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.

Macromolecule Content 

  • Total Structure Weight: 130.98 kDa 
  • Atom Count: 8,454 
  • Modeled Residue Count: 1,063 
  • Deposited Residue Count: 1,184 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:
|  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 (Depositor), 0.259 (DCC) 
  • R-Value Work:  0.236 (Depositor) 
  • R-Value Observed: 0.237 (Depositor) 
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

View Full Validation Report



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