3SNP

Crystal structure analysis of iron regulatory protein 1 in complex with ferritin H IRE RNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of dual function iron regulatory protein 1 complexed with ferritin IRE-RNA.

Walden, W.E.Selezneva, A.I.Dupuy, J.Volbeda, A.Fontecilla-Camps, J.C.Theil, E.C.Volz, K.

(2006) Science 314: 1903-1908

  • DOI: 10.1126/science.1133116
  • Primary Citation of Related Structures:  
    3SNP

  • PubMed Abstract: 
  • Iron regulatory protein 1 (IRP1) binds iron-responsive elements (IREs) in messenger RNAs (mRNAs), to repress translation or degradation, or binds an iron-sulfur cluster, to become a cytosolic aconitase enzyme. The 2.8 angstrom resolution crystal structure of the IRP1:ferritin H IRE complex shows an open protein conformation compared with that of cytosolic aconitase ...

    Iron regulatory protein 1 (IRP1) binds iron-responsive elements (IREs) in messenger RNAs (mRNAs), to repress translation or degradation, or binds an iron-sulfur cluster, to become a cytosolic aconitase enzyme. The 2.8 angstrom resolution crystal structure of the IRP1:ferritin H IRE complex shows an open protein conformation compared with that of cytosolic aconitase. The extended, L-shaped IRP1 molecule embraces the IRE stem-loop through interactions at two sites separated by approximately 30 angstroms, each involving about a dozen protein:RNA bonds. Extensive conformational changes related to binding the IRE or an iron-sulfur cluster explain the alternate functions of IRP1 as an mRNA regulator or enzyme.


    Related Citations: 
    • Crystallization and preliminary X-ray diffraction analysis of iron regulatory protein 1 in complex with ferritin IRE RNA.
      Selezneva, A.I., Cavigiolio, G., Theil, E.C., Walden, W.E., Volz, K.
      (2006) Acta Crystallogr Sect F Struct Biol Cryst Commun 62: 249

    Organizational Affiliation

    Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL 60612-7344, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cytoplasmic aconitate hydrataseA, B908Oryctolagus cuniculusMutation(s): 2 
Gene Names: ACO1FRPIREB1IREBPIRP1
EC: 4.2.1.3
UniProt
Find proteins for Q01059 (Oryctolagus cuniculus)
Explore Q01059 
Go to UniProtKB:  Q01059
Protein Feature View
Expand
  • Reference Sequence
Find similar nucleic acids by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsLengthOrganismImage
ferritin H IRE RNAC, D30N/A
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 109.555α = 90
b = 80.851β = 92.03
c = 142.873γ = 90
Software Package:
Software NamePurpose
SERGUIdata collection
PHASERphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-07-27
    Type: Initial release
  • Version 1.1: 2011-08-03
    Changes: Advisory
  • Version 1.2: 2017-11-08
    Changes: Advisory, Refinement description