1H6O

Dimerisation domain from human TRF1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.250 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of the TRFH dimerization domain of the human telomeric proteins TRF1 and TRF2.

Fairall, L.Chapman, L.Moss, H.de Lange, T.Rhodes, D.

(2001) Mol. Cell 8: 351-361

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • TRF1 and TRF2 are key components of vertebrate telomeres. They bind to double-stranded telomeric DNA as homodimers. Dimerization involves the TRF homology (TRFH) domain, which also mediates interactions with other telomeric proteins. The crystal stru ...

    TRF1 and TRF2 are key components of vertebrate telomeres. They bind to double-stranded telomeric DNA as homodimers. Dimerization involves the TRF homology (TRFH) domain, which also mediates interactions with other telomeric proteins. The crystal structures of the dimerization domains from human TRF1 and TRF2 were determined at 2.9 and 2.2 A resolution, respectively. Despite a modest sequence identity, the two TRFH domains have the same entirely alpha-helical architecture, resembling a twisted horseshoe. The dimerization interfaces feature unique interactions that prevent heterodimerization. Mutational analysis of TRF1 corroborates the structural data and underscores the importance of the TRFH domain in dimerization, DNA binding, and telomere localization. A possible structural homology between the TRFH domain of fission yeast telomeric protein Taz1 with those of the vertebrate TRFs is suggested.


    Related Citations: 
    • A Human Telomeric Protein
      Chong, L.,Van Steensel, B.,Broccoli, D.,Erdjument-Bromage, H.,Hannish, J.,Tempst, P.,de Lange, T.
      (1995) Science 270: 1663


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Hills Road, CB2 2QH, Cambridge, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TELOMERIC REPEAT BINDING FACTOR 1
A
204Homo sapiensMutation(s): 0 
Gene Names: TERF1 (PIN2, TRBF1, TRF, TRF1)
Find proteins for P54274 (Homo sapiens)
Go to Gene View: TERF1
Go to UniProtKB:  P54274
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.250 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 85.390α = 90.00
b = 85.390β = 90.00
c = 91.630γ = 120.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOSFLMdata reduction
CCP4phasing
SHARPphasing
CNSrefinement
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-09-05
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-06-13
    Type: Data collection, Database references