3K6G

Crystal structure of Rap1 and TRF2 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

A conserved motif within RAP1 has diversified roles in telomere protection and regulation in different organisms.

Chen, Y.Rai, R.Zhou, Z.R.Kanoh, J.Ribeyre, C.Yang, Y.Zheng, H.Damay, P.Wang, F.Tsujii, H.Hiraoka, Y.Shore, D.Hu, H.Y.Chang, S.Lei, M.

(2011) Nat.Struct.Mol.Biol. 18: 213-221

  • DOI: 10.1038/nsmb.1974
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Repressor activator protein 1 (RAP1) is the most highly conserved telomere protein. It is involved in protecting chromosome ends in fission yeast and promoting gene silencing in Saccharomyces cerevisiae, whereas it represses homology-directed recombi ...

    Repressor activator protein 1 (RAP1) is the most highly conserved telomere protein. It is involved in protecting chromosome ends in fission yeast and promoting gene silencing in Saccharomyces cerevisiae, whereas it represses homology-directed recombination at telomeres in mammals. To understand how RAP1 has such diverse functions at telomeres, we solved the crystal or solution structures of the RAP1 C-terminal (RCT) domains of RAP1 from multiple organisms in complex with their respective protein-binding partners. Our analysis establishes RAP1(RCT) as an evolutionarily conserved protein-protein interaction module. In mammalian and fission yeast cells, this module interacts with TRF2 and Taz1, respectively, targeting RAP1 to chromosome ends for telomere protection. In contrast, S. cerevisiae RAP1 uses its RCT domain to recruit Sir3 to telomeres to mediate gene silencing. Together, our results show that, depending on the organism, the evolutionarily conserved RAP1 RCT motif has diverse functional roles at telomeres.


    Organizational Affiliation

    Howard Hughes Medical Institute, University of Michigan Medical School, Ann Arbor, Michigan, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Telomeric repeat-binding factor 2-interacting protein 1
A, B, C
111Homo sapiensMutation(s): 0 
Gene Names: TERF2IP (DRIP5, RAP1)
Find proteins for Q9NYB0 (Homo sapiens)
Go to Gene View: TERF2IP
Go to UniProtKB:  Q9NYB0
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Telomeric repeat-binding factor 2
D, E, F
42Homo sapiensMutation(s): 0 
Gene Names: TERF2 (TRBF2, TRF2)
Find proteins for Q15554 (Homo sapiens)
Go to Gene View: TERF2
Go to UniProtKB:  Q15554
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D, E, F
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.224 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 42.568α = 90.00
b = 72.105β = 90.00
c = 150.993γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data scaling
SHARPphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance