4RQI

Structure of TRF2/RAP1 secondary interaction binding site


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4405 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.1 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

  • 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.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Telomeric repeat-binding factor 2
A, B, C, D
203Homo sapiensMutation(s): 0 
Gene Names: TERF2 (TRBF2, TRF2)
Find proteins for Q15554 (Homo sapiens)
Go to Gene View: TERF2
Go to UniProtKB:  Q15554
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Telomeric repeat-binding factor 2-interacting protein 1
E, F, G, H
18Homo sapiensMutation(s): 0 
Gene Names: TERF2IP (DRIP5, RAP1)
Find proteins for Q9NYB0 (Homo sapiens)
Go to Gene View: TERF2IP
Go to UniProtKB:  Q9NYB0
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
B, C
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4405 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.197 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 53.790α = 90.00
b = 104.850β = 94.39
c = 85.310γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
Pcubedata collection
MOLREPphasing
XDSdata scaling
BUSTERrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-02-10
    Type: Initial release
  • Version 1.1: 2016-03-16
    Type: Database references