1DJ8

CRYSTAL STRUCTURE OF E. COLI PERIPLASMIC PROTEIN HDEA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.209 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

HDEA, a periplasmic protein that supports acid resistance in pathogenic enteric bacteria.

Gajiwala, K.S.Burley, S.K.

(2000) J Mol Biol 295: 605-612

  • DOI: 10.1006/jmbi.1999.3347
  • Primary Citation of Related Structures:  
    1DJ8

  • PubMed Abstract: 
  • The X-ray crystal structure of the Escherichia coli stress response protein HDEA has been determined at 2.0 A resolution. The single domain alpha-helical protein is found in the periplasmic space, where it supports an acid resistance phenotype essential for infectivity of enteric bacterial pathogens, such as Shigella and E ...

    The X-ray crystal structure of the Escherichia coli stress response protein HDEA has been determined at 2.0 A resolution. The single domain alpha-helical protein is found in the periplasmic space, where it supports an acid resistance phenotype essential for infectivity of enteric bacterial pathogens, such as Shigella and E. coli. Functional studies demonstrate that HDEA is activated by a dimer-to-monomer transition at acidic pH, leading to suppression of aggregation by acid-denatured proteins. We suggest that HDEA may support chaperone-like functions during the extremely acidic conditions.


    Related Citations: 
    • Crystal Structure of Escherichia coli HdeA
      Yang, F., Gustafson, K.R., Boyd, M.R., Wlodawer, A.
      (1998) Nat Struct Biol 5: 763
    • Comparing the Predicted and Observed Properties of Proteins Encoded in the Genome of Escherichia coli K-12
      Link, A.J., Robinson, K., Church, G.H.
      (1997) Electrophoresis 18: 1259
    • Identification of Sigma S-Dependent Genes Associated with the Stationary-Phase Acid-Resistance Phenotype of Shigella flexneri
      Waterman, S.R., Small, P.L.
      (1996) Mol Microbiol 21: 925
    • Evidence for GroES Acting as Transcriptional Regulator
      Legname, G., Buono, P., Fossati, G., Monzini, N., Mascagni, P., Modena, D., Marcucci, F.
      (1996) Biochem Biophys Res Commun 229: 412
    • H-NS: a Modulator of Environmentally Regulated Gene Expression
      Atlung, T., Ingmer, H.
      (1997) Mol Microbiol 24: 7

    Organizational Affiliation

    Laboratorie of Molecular Biophysics, Howard Hughes Medical Institute, New York, 10021, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN HNS-DEPENDENT EXPRESSION AA, B, C, D, E, F89Escherichia coliMutation(s): 0 
UniProt
Find proteins for P0AES9 (Escherichia coli (strain K12))
Explore P0AES9 
Go to UniProtKB:  P0AES9
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.209 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47α = 90
b = 73.6β = 96.8
c = 74.3γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-12-10
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2021-02-03
    Changes: Database references, Structure summary