2RA1

Crystal structure of the N-terminal part of the bacterial S-layer protein SbsC


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.406 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.177 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure and binding behavior of the bacterial cell surface layer protein SbsC.

Pavkov, T.Egelseer, E.M.Tesarz, M.Svergun, D.I.Sleytr, U.B.Keller, W.

(2008) Structure 16: 1226-1237

  • DOI: 10.1016/j.str.2008.05.012

  • PubMed Abstract: 
  • Surface layers (S-layers) comprise the outermost cell envelope component of most archaea and many bacteria. Here we present the structure of the bacterial S-layer protein SbsC from Geobacillus stearothermophilus, showing a very elongated and flexible ...

    Surface layers (S-layers) comprise the outermost cell envelope component of most archaea and many bacteria. Here we present the structure of the bacterial S-layer protein SbsC from Geobacillus stearothermophilus, showing a very elongated and flexible molecule, with strong and specific binding to the secondary cell wall polymer (SCWP). The crystal structure of rSbsC((31-844)) revealed a novel fold, consisting of six separate domains, which are connected by short flexible linkers. The N-terminal domain exhibits positively charged residues regularly spaced along the putative ligand binding site matching the distance of the negative charges on the extended SCWP. Upon SCWP binding, a considerable stabilization of the N-terminal domain occurs. These findings provide insight into the processes of S-layer attachment to the underlying cell wall and self-assembly, and also accommodate the observed mechanical strength, the polarity of the S-layer, and the pronounced requirement for surface flexibility inherent to cell growth and division.


    Organizational Affiliation

    Institute of Molecular Biosciences, Structural Biology, University of Graz, Humboldtsrasse 50/3, 8010 Graz, Austria.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Surface layer protein
A
412Geobacillus stearothermophilusGene Names: sbsC
Find proteins for O68840 (Geobacillus stearothermophilus)
Go to UniProtKB:  O68840
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.406 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.177 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 49.645α = 90.00
b = 94.877β = 106.68
c = 59.646γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
PHENIXrefinement
PDB_EXTRACTdata extraction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-08-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-10-25
    Type: Refinement description