3BU8

Crystal Structure of TRF2 TRFH domain and TIN2 peptide complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.238 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

A shared docking motif in TRF1 and TRF2 used for differential recruitment of telomeric proteins.

Chen, Y.Yang, Y.van Overbeek, M.Donigian, J.R.Baciu, P.de Lange, T.Lei, M.

(2008) Science 319: 1092-1096

  • DOI: 10.1126/science.1151804
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Mammalian telomeres are protected by a six-protein complex: shelterin. Shelterin contains two closely related proteins (TRF1 and TRF2), which recruit various proteins to telomeres. We dissect the interactions of TRF1 and TRF2 with their shared bindin ...

    Mammalian telomeres are protected by a six-protein complex: shelterin. Shelterin contains two closely related proteins (TRF1 and TRF2), which recruit various proteins to telomeres. We dissect the interactions of TRF1 and TRF2 with their shared binding partner (TIN2) and other shelterin accessory factors. TRF1 recognizes TIN2 using a conserved molecular surface in its TRF homology (TRFH) domain. However, this same surface does not act as a TIN2 binding site in TRF2, and TIN2 binding to TRF2 is mediated by a region outside the TRFH domain. Instead, the TRFH docking site of TRF2 binds a shelterin accessory factor (Apollo), which does not interact with the TRFH domain of TRF1. Conversely, the TRFH domain of TRF1, but not of TRF2, interacts with another shelterin-associated factor: PinX1.


    Organizational Affiliation

    Department of Biological Chemistry, University of Michigan Medical School, 1150 West Medical Center Drive, Ann Arbor, MI 48109, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Telomeric repeat-binding factor 2
A, B
235Homo sapiensGene Names: TERF2 (TRBF2, TRF2)
Find proteins for Q15554 (Homo sapiens)
Go to Gene View: TERF2
Go to UniProtKB:  Q15554
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TERF1-interacting nuclear factor 2
C, D
19Homo sapiensGene Names: TINF2 (TIN2)
Find proteins for Q9BSI4 (Homo sapiens)
Go to Gene View: TINF2
Go to UniProtKB:  Q9BSI4
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.238 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 75.235α = 90.00
b = 75.235β = 90.00
c = 181.600γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data reduction
PHASERphasing
HKL-2000data scaling
Blu-Icedata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-02-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance