5OF2

The structural versatility of TasA in B. subtilis biofilm formation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.173 
  • R-Value Observed: 0.175 

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:  
    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 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.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Spore coat-associated protein NA210Bacillus subtilis subsp. subtilis str. 168Mutation(s): 0 
Gene Names: tasAcotNyqhFBSU24620
Find proteins for P54507 (Bacillus subtilis (strain 168))
Explore P54507 
Go to UniProtKB:  P54507
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
EDO
Query on EDO

Download CCD File 
A
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.173 
  • R-Value Observed: 0.175 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.658α = 90
b = 43.039β = 90.17
c = 51.693γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Revision History 

  • 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