5OF1

The structural versatility of TasA in B. subtilis biofilm formation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.56 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.152 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural changes of TasA in biofilm formation ofBacillus subtilis.

Diehl, A.Roske, Y.Ball, L.Chowdhury, A.Hiller, M.Moliere, N.Kramer, R.Stoppler, D.Worth, C.L.Schlegel, B.Leidert, M.Cremer, N.Erdmann, N.Lopez, D.Stephanowitz, H.Krause, E.van Rossum, B.J.Schmieder, P.Heinemann, U.Turgay, K.Akbey, U.Oschkinat, H.

(2018) Proc. Natl. Acad. Sci. U.S.A. 115: 3237-3242

  • DOI: 10.1073/pnas.1718102115
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Microorganisms form surface-attached communities, termed biofilms, which can serve as protection against host immune reactions or antibiotics. <i>Bacillus subtilis </i> biofilms contain TasA as major proteinaceous component in addition to exopolysac ...

    Microorganisms form surface-attached communities, termed biofilms, which can serve as protection against host immune reactions or antibiotics. Bacillus subtilis biofilms contain TasA as major proteinaceous component in addition to exopolysaccharides. In stark contrast to the initially unfolded biofilm proteins of other bacteria, TasA is a soluble, stably folded monomer, whose structure we have determined by X-ray crystallography. Subsequently, we characterized in vitro different oligomeric forms of TasA by NMR, EM, X-ray diffraction, and analytical ultracentrifugation (AUC) experiments. However, by magic-angle spinning (MAS) NMR on live biofilms, a swift structural change toward only one of these forms, consisting of homogeneous and protease-resistant, β-sheet-rich fibrils, was observed in vivo. Thereby, we characterize a structural change from a globular state to a fibrillar form in a functional prokaryotic system on the molecular level.


    Organizational Affiliation

    Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany.,Centro Nacional de Biotecnologia, Universidad Autonoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain.,Institut für Mikrobiologie, Leibniz Universität Hannover, 30419 Hannover, Germany; heinemann@mdc-berlin.de turgay@ifmb.uni-hannover.de oschkinat@fmp-berlin.de.,Institut für Mikrobiologie, Leibniz Universität Hannover, 30419 Hannover, Germany.,Max-Delbrück-Center for Molecular Medicine, 13125 Berlin, Germany; heinemann@mdc-berlin.de turgay@ifmb.uni-hannover.de oschkinat@fmp-berlin.de.,Aarhus Institute of Advanced Studies, Aarhus University, 8000 Aarhus C, Denmark.,Leibniz-Forschungsinstitut für Molekulare Pharmakologie, 13125 Berlin, Germany; heinemann@mdc-berlin.de turgay@ifmb.uni-hannover.de oschkinat@fmp-berlin.de.,Leibniz-Forschungsinstitut für Molekulare Pharmakologie, 13125 Berlin, Germany.,Max-Delbrück-Center for Molecular Medicine, 13125 Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Spore coat-associated protein N
A, B
210Bacillus subtilis (strain 168)Mutation(s): 0 
Gene Names: tasA (cotN, yqhF)
Find proteins for P54507 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P54507
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
SAL
Query on SAL

Download SDF File 
Download CCD File 
A, B
2-HYDROXYBENZOIC ACID
SALICYLIC ACID
C7 H6 O3
YGSDEFSMJLZEOE-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.56 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.152 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 40.728α = 89.92
b = 43.149β = 91.86
c = 51.744γ = 90.01
Software Package:
Software NamePurpose
XDSdata scaling
REFMACrefinement
XDSdata reduction
AutoSolphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2018-03-21
    Type: Initial release
  • Version 1.1: 2018-03-28
    Type: Data collection, Database references
  • Version 1.2: 2018-04-11
    Type: Data collection, Database references, Derived calculations, Structure summary