Structure of DNTTIP1 dimerisation domain.

Experimental Data Snapshot

  • Resolution: 2.10 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Structural and Functional Characterization of a Cell Cycle Associated Hdac1/2 Complex Reveals the Structural Basis for Complex Assembly and Nucleosome Targeting.

Itoh, T.Fairall, L.Muskett, F.W.Milano, C.P.Watson, P.J.Arnaudo, N.Saleh, A.Millard, C.J.El-Mezgueldi, M.Martino, F.Schwabe, J.W.R.

(2015) Nucleic Acids Res 43: 2033

  • DOI: https://doi.org/10.1093/nar/gkv068
  • Primary Citation of Related Structures:  
    2MWI, 4D6K

  • PubMed Abstract: 

    Recent proteomic studies have identified a novel histone deacetylase complex that is upregulated during mitosis and is associated with cyclin A. This complex is conserved from nematodes to man and contains histone deacetylases 1 and 2, the MIDEAS corepressor protein and a protein called DNTTIP1 whose function was hitherto poorly understood. Here, we report the structures of two domains from DNTTIP1. The amino-terminal region forms a tight dimerization domain with a novel structural fold that interacts with and mediates assembly of the HDAC1:MIDEAS complex. The carboxy-terminal domain of DNTTIP1 has a structure related to the SKI/SNO/DAC domain, despite lacking obvious sequence homology. We show that this domain in DNTTIP1 mediates interaction with both DNA and nucleosomes. Thus, DNTTIP1 acts as a dimeric chromatin binding module in the HDAC1:MIDEAS corepressor complex.

  • Organizational Affiliation

    Henry Wellcome Laboratories of Structural Biology, Department of Biochemistry, University of Leicester, Lancaster Road, Leicester LE1 9HN, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B, C, D, E
A, B, C, D, E, F
92Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H147 (Homo sapiens)
Explore Q9H147 
Go to UniProtKB:  Q9H147
GTEx:  ENSG00000101457 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9H147
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.10 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.91α = 90
b = 103.051β = 90
c = 108.931γ = 90
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: 2015-02-18
    Type: Initial release
  • Version 1.1: 2015-03-18
    Changes: Database references
  • Version 1.2: 2019-10-16
    Changes: Data collection, Experimental preparation, Other
  • Version 1.3: 2024-05-08
    Changes: Data collection, Database references