4RQI

Structure of TRF2/RAP1 secondary interaction binding site


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.44 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.200 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A higher-order entity formed by the flexible assembly of RAP1 with TRF2.

Gaullier, G.Miron, S.Pisano, S.Buisson, R.Le Bihan, Y.V.Tellier-Lebegue, C.Messaoud, W.Roblin, P.Guimaraes, B.G.Thai, R.Giraud-Panis, M.J.Gilson, E.Le Du, M.H.

(2016) Nucleic Acids Res 44: 1962-1976

  • DOI: 10.1093/nar/gkv1531
  • Primary Citation of Related Structures:  
    4RQI

  • PubMed Abstract: 
  • Telomere integrity is essential to maintain genome stability, and telomeric dysfunctions are associated with cancer and aging pathologies. In human, the shelterin complex binds TTAGGG DNA repeats and provides capping to chromosome ends. Within shelte ...

    Telomere integrity is essential to maintain genome stability, and telomeric dysfunctions are associated with cancer and aging pathologies. In human, the shelterin complex binds TTAGGG DNA repeats and provides capping to chromosome ends. Within shelterin, RAP1 is recruited through its interaction with TRF2, and TRF2 is required for telomere protection through a network of nucleic acid and protein interactions. RAP1 is one of the most conserved shelterin proteins although one unresolved question is how its interaction may influence TRF2 properties and regulate its capacity to bind multiple proteins. Through a combination of biochemical, biophysical and structural approaches, we unveiled a unique mode of assembly between RAP1 and TRF2. The complete interaction scheme between the full-length proteins involves a complex biphasic interaction of RAP1 that directly affects the binding properties of the assembly. These results reveal how a non-DNA binding protein can influence the properties of a DNA-binding partner by mutual conformational adjustments.


    Organizational Affiliation

    Department of Biochemistry, Biophysics and Structural Biology, Institute for Integrative Biology of the Cell (I2BC), CEA, UMR 9198 CNRS, Université Paris-Sud, Batiment 144, CEA Saclay, Gif-sur-Yvette, F-91191, France marie-helene.ledu@cea.fr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Telomeric repeat-binding factor 2ABCD203Homo sapiensMutation(s): 0 
Gene Names: TERF2TRBF2TRF2
Find proteins for Q15554 (Homo sapiens)
Explore Q15554 
Go to UniProtKB:  Q15554
NIH Common Fund Data Resources
PHAROS  Q15554
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Telomeric repeat-binding factor 2-interacting protein 1EFGH18Homo sapiensMutation(s): 0 
Gene Names: TERF2IPDRIP5RAP1PP8000
Find proteins for Q9NYB0 (Homo sapiens)
Explore Q9NYB0 
Go to UniProtKB:  Q9NYB0
NIH Common Fund Data Resources
PHAROS  Q9NYB0
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download CCD File 
B, C
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download CCD File 
D
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.44 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.200 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.79α = 90
b = 104.85β = 94.39
c = 85.31γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOLREPphasing
BUSTERrefinement
XDSdata reduction
XDSdata scaling
Pcubedata collection

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-02-10
    Type: Initial release
  • Version 1.1: 2016-03-16
    Changes: Database references
  • Version 1.2: 2019-07-17
    Changes: Data collection, Refinement description