Structure of the TBL1 tetramerisation domain

Experimental Data Snapshot

  • Resolution: 3.20 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.278 
  • R-Value Observed: 0.280 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Structural Basis for the Assembly of the Smrt/Ncor Core Transcriptional Repression Machinery.

Oberoi, J.Fairall, L.Watson, P.J.Yang, J.C.Czimmerer, Z.Kampmann, T.Goult, B.T.Greenwood, J.A.Gooch, J.T.Kallenberger, B.C.Nagy, L.Neuhaus, D.Schwabe, J.W.R.

(2011) Nat Struct Mol Biol 18: 177

  • DOI: https://doi.org/10.1038/nsmb.1983
  • Primary Citation of Related Structures:  
    2L5G, 2XTC, 2XTD, 2XTE

  • PubMed Abstract: 

    Eukaryotic transcriptional repressors function by recruiting large coregulatory complexes that target histone deacetylase enzymes to gene promoters and enhancers. Transcriptional repression complexes, assembled by the corepressor NCoR and its homolog SMRT, are crucial in many processes, including development and metabolic physiology. The core repression complex involves the recruitment of three proteins, HDAC3, GPS2 and TBL1, to a highly conserved repression domain within SMRT and NCoR. We have used structural and functional approaches to gain insight into the architecture and biological role of this complex. We report the crystal structure of the tetrameric oligomerization domain of TBL1, which interacts with both SMRT and GPS2, and the NMR structure of the interface complex between GPS2 and SMRT. These structures, together with computational docking, mutagenesis and functional assays, reveal the assembly mechanism and stoichiometry of the corepressor complex.

  • Organizational Affiliation

    Henry Wellcome Laboratories of Structural Biology, Department of Biochemistry, University of Leicester, Leicester, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
71Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for O60907 (Homo sapiens)
Explore O60907 
Go to UniProtKB:  O60907
PHAROS:  O60907
GTEx:  ENSG00000101849 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO60907
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 3.20 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.278 
  • R-Value Observed: 0.280 
  • Space Group: P 32 1 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.886α = 90
b = 47.886β = 90
c = 153.811γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-01-19
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-12-20
    Changes: Data collection, Database references, Other, Refinement description