3BQO

Crystal Structure of TRF1 TRFH domain and TIN2 peptide complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.220 

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
  • Structures With Same Primary Citation

  • 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: 2
MoleculeChainsSequence LengthOrganismDetails
TERF1-interacting nuclear factor 2B21Homo sapiensMutation(s): 0 
Gene Names: TINF2TIN2
Find proteins for Q9BSI4 (Homo sapiens)
Explore Q9BSI4 
Go to UniProtKB:  Q9BSI4
NIH Common Fund Data Resources
PHAROS  Q9BSI4
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Telomeric repeat-binding factor 1A211Homo sapiensMutation(s): 0 
Gene Names: TERF1PIN2TRBF1TRFTRF1
Find proteins for P54274 (Homo sapiens)
Explore P54274 
Go to UniProtKB:  P54274
NIH Common Fund Data Resources
PHAROS  P54274
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.220 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 117.105α = 90
b = 117.105β = 90
c = 88.018γ = 120
Software Package:
Software NamePurpose
PHASERphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

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