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 
  • R-Value Observed: 0.153 

wwPDB Validation   3D Report Full Report


This is version 1.3 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: https://doi.org/10.1073/pnas.1718102115
  • Primary Citation of Related Structures:  
    5OF1, 5OF2

  • PubMed Abstract: 

    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

    Leibniz-Forschungsinstitut für Molekulare Pharmakologie, 13125 Berlin, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Spore coat-associated protein N
A, B
210Bacillus subtilis subsp. subtilis str. 168Mutation(s): 0 
Gene Names: tasAcotNyqhFBSU24620
UniProt
Find proteins for P54507 (Bacillus subtilis (strain 168))
Explore P54507 
Go to UniProtKB:  P54507
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP54507
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.56 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.152 
  • R-Value Observed: 0.153 
  • 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
REFMACrefinement
XDSdata reduction
XDSdata scaling
AutoSolphasing

Structure Validation

View Full Validation Report



Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2018-03-21
    Type: Initial release
  • Version 1.1: 2018-03-28
    Changes: Data collection, Database references
  • Version 1.2: 2018-04-11
    Changes: Data collection, Database references, Derived calculations, Structure summary
  • Version 1.3: 2024-10-16
    Changes: Data collection, Database references, Derived calculations, Structure summary