3I2Z

Structure of cold shock protein E from Salmonella typhimurium

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.10 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.205 

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This is version 1.1 of the entry. See complete history. 


Literature

Crystallization and X-ray structure of cold-shock protein E from Salmonella typhimurium

Morgan, H.P., Wear, M.A., McNae, I., Gallagher, M.P., Walkinshaw, M.D.

(2009) Acta Crystallogr Sect F Struct Biol Cryst Commun 65: 1240-1245

  • DOI: 10.1107/S1744309109033788
  • Primary Citation of Related Structures:  
    3I2Z

  • PubMed Abstract: 

    • In prokaryotic organisms, cold shock triggers the production of a small highly conserved family of cold-shock proteins (CSPs). CSPs have been well studied structurally and functionally in Escherichia coli and Bacillus subtilis, but Salmonella typhimurium CSPs remain relatively uncharacterized ...

    In prokaryotic organisms, cold shock triggers the production of a small highly conserved family of cold-shock proteins (CSPs). CSPs have been well studied structurally and functionally in Escherichia coli and Bacillus subtilis, but Salmonella typhimurium CSPs remain relatively uncharacterized. In S. typhimurium, six homologous CSPs have been identified: StCspA-E and StCspH. The crystal structure of cold-shock protein E from S. typhimurium (StCspE) has been determined at 1.1 A resolution and has an R factor of 0.203 after refinement. The three-dimensional structure is similar to those of previously determined CSPs and is composed of five antiparallel beta-strands forming a classic OB fold/five-stranded beta-barrel. This first structure of a CSP from S. typhimurium provides new insight into the cold-shock response of this bacterium.

    Organizational Affiliation: 

    Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, Scotland.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RNA chaperone, negative regulator of cspA transcriptionB [auth A],
A [auth B]		71Salmonella enterica subsp. enterica serovar TyphimuriumMutation(s): 0 
Gene Names: cold shock protein E, cspE
UniProt
Find proteins for Q7CQZ5 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Explore Q7CQZ5 
Go to UniProtKB:  Q7CQZ5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ7CQZ5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.10 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.205 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 29.395α = 90
b = 46.798β = 103.84
c = 46.718γ = 90
Software Package:
Software NamePurpose
AMoREphasing
REFMACrefinement
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-12-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance