2VY9

Molecular architecture of the stressosome, a signal integration and transduction hub


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Molecular Architecture of the "Stressosome," a Signal Integration and Transduction Hub

Marles-Wright, J.Grant, T.Delumeau, O.Van Duinen, G.Firbank, S.J.Lewis, P.J.Murray, J.W.Newman, J.A.Quin, M.B.Race, P.R.Rohou, A.Tichelaar, W.Van Heel, M.Lewis, R.J.

(2008) Science 322: 92

  • DOI: 10.1126/science.1159572

  • PubMed Abstract: 
  • A commonly used strategy by microorganisms to survive multiple stresses involves a signal transduction cascade that increases the expression of stress-responsive genes. Stress signals can be integrated by a multiprotein signaling hub that responds to ...

    A commonly used strategy by microorganisms to survive multiple stresses involves a signal transduction cascade that increases the expression of stress-responsive genes. Stress signals can be integrated by a multiprotein signaling hub that responds to various signals to effect a single outcome. We obtained a medium-resolution cryo-electron microscopy reconstruction of the 1.8-megadalton "stressosome" from Bacillus subtilis. Fitting known crystal structures of components into this reconstruction gave a pseudoatomic structure, which had a virus capsid-like core with sensory extensions. We suggest that the different sensory extensions respond to different signals, whereas the conserved domains in the core integrate the varied signals. The architecture of the stressosome provides the potential for cooperativity, suggesting that the response could be tuned dependent on the magnitude of chemophysical insult.


    Organizational Affiliation

    Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle-upon-Tyne NE2 4HH, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ANTI-SIGMA-FACTOR ANTAGONIST
A, B
123Moorella thermoacetica (strain ATCC 39073 / JCM 9320)Mutation(s): 0 
Find proteins for Q2RIF5 (Moorella thermoacetica (strain ATCC 39073 / JCM 9320))
Go to UniProtKB:  Q2RIF5
Small Molecules
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: 2.3 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.226 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 51.081α = 90.00
b = 60.418β = 90.00
c = 89.329γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
SHELXphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-10-14
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance