1EW4

CRYSTAL STRUCTURE OF ESCHERICHIA COLI CYAY PROTEIN REVEALS A NOVEL FOLD FOR THE FRATAXIN FAMILY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of Escherichia coli CyaY protein reveals a previously unidentified fold for the evolutionarily conserved frataxin family.

Cho, S.J.Lee, M.G.Yang, J.K.Lee, J.Y.Song, H.K.Suh, S.W.

(2000) Proc Natl Acad Sci U S A 97: 8932-8937

  • DOI: 10.1073/pnas.160270897
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Friedreich ataxia is an autosomal recessive neurodegenerative disease caused by defects in the FRDA gene, which encodes a mitochondrial protein called frataxin. Frataxin is evolutionarily conserved, with homologs identified in mammals, worms, yeast, ...

    Friedreich ataxia is an autosomal recessive neurodegenerative disease caused by defects in the FRDA gene, which encodes a mitochondrial protein called frataxin. Frataxin is evolutionarily conserved, with homologs identified in mammals, worms, yeast, and bacteria. The CyaY proteins of gamma-purple bacteria are believed to be closely related to the ancestor of frataxin. In this study, we have determined the crystal structure of the CyaY protein from Escherichia coli at 1.4-A resolution. It reveals a protein fold consisting of a six-stranded antiparallel beta-sheet flanked on one side by two alpha-helices. This fold is likely to be shared by all members of the conserved frataxin family. This study also provides a framework for the interpretation of disease-associated mutations in frataxin and for understanding the possible functions of this protein family.


    Organizational Affiliation

    Department of Chemistry, Seoul National University, Seoul 151-742, Korea.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYAY PROTEIN
A
106Escherichia coliMutation(s): 0 
Find proteins for P27838 (Escherichia coli (strain K12))
Go to UniProtKB:  P27838
Protein Feature View
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.178α = 90
b = 44.178β = 90
c = 98.286γ = 120
Software Package:
Software NamePurpose
SHARPphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-08-09
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance