3SN2

Crystal structure analysis of iron regulatory protein 1 in complex with transferrin receptor IRE B RNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.99 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.230 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Accommodating variety in iron-responsive elements: Crystal structure of transferrin receptor 1 B IRE bound to iron regulatory protein 1.

Walden, W.E.Selezneva, A.Volz, K.

(2012) FEBS Lett 586: 32-35

  • DOI: 10.1016/j.febslet.2011.11.018
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Iron responsive elements (IREs) are short stem-loop structures found in several mRNAs encoding proteins involved in cellular iron metabolism. Iron regulatory proteins (IRPs) control iron homeostasis through differential binding to the IREs, accommoda ...

    Iron responsive elements (IREs) are short stem-loop structures found in several mRNAs encoding proteins involved in cellular iron metabolism. Iron regulatory proteins (IRPs) control iron homeostasis through differential binding to the IREs, accommodating any sequence or structural variations that the IREs may present. Here we report the structure of IRP1 in complex with transferrin receptor 1 B (TfR B) IRE, and compare it to the complex with ferritin H (Ftn H) IRE. The two IREs are bound to IRP1 through nearly identical protein-RNA contacts, although their stem conformations are significantly different. These results support the view that binding of different IREs with IRP1 depends both on protein and RNA conformational plasticity, adapting to RNA variation while retaining conserved protein-RNA contacts.


    Related Citations: 
    • 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

    Organizational Affiliation

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



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cytoplasmic aconitate hydratase
A
908Oryctolagus cuniculusMutation(s): 2 
Gene Names: ACO1FRPIREB1IREBPIRP1
EC: 4.2.1.3
Find proteins for Q01059 (Oryctolagus cuniculus)
Go to UniProtKB:  Q01059

Find similar nucleic acids by: Sequence   |  Structure

Entity ID: 2
MoleculeChainsLengthOrganism
transferrin receptor iron regulatory element B RNAB29N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.99 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.230 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.675α = 90
b = 101.675β = 90
c = 281.349γ = 90
Software Package:
Software NamePurpose
SERGUIdata collection
PHASERphasing
PHENIXrefinement
X-GENdata reduction
X-GENdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-11-23
    Type: Initial release
  • Version 1.1: 2014-12-24
    Changes: Database references
  • Version 1.2: 2017-11-08
    Changes: Refinement description