3OWT

Crystal structure of S. cerevisiae RAP1-Sir3 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.215 

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
  • Structures With Same Primary Citation

  • 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
DNA-binding protein RAP1
A, B
157Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: GRF1N1310RAP1TUF1YNL216W
Find proteins for P11938 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P11938

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Regulatory protein SIR3
C
27Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: CMT1L9753.10MAR2SIR3STE8YLR442C
Find proteins for P06701 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P06701
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.215 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 89.831α = 90
b = 89.831β = 90
c = 211.791γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
PHASESphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-01-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance