3SNP

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.198 

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:  
  • Also Cited By: 3SN2

  • 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 stru ...

    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 62: 249


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cytoplasmic aconitate hydratase
A, B
908Oryctolagus cuniculusMutations: S522C, S456C
Gene Names: ACO1 (FRP, IREB1, IREBP)
EC: 4.2.1.3
Find proteins for Q01059 (Oryctolagus cuniculus)
Go to Gene View: ACO1
Go to UniProtKB:  Q01059
Entity ID: 2
MoleculeChainsLengthOrganism
ferritin H IRE RNAC,D30N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.198 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 109.555α = 90.00
b = 80.851β = 92.03
c = 142.873γ = 90.00
Software Package:
Software NamePurpose
SERGUIdata collection
HKL-2000data reduction
HKL-2000data scaling
CNSrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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