2MWI image
Entry Detail
PDB ID:
2MWI
Keywords:
Title:
The structure of the carboxy-terminal domain of DNTTIP1
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2014-11-11
Release Date:
2015-02-18
Method Details:
Experimental Method:
Conformers Calculated:
100
Conformers Submitted:
65
Selection Criteria:
structures with the least restraint violations
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Deoxynucleotidyltransferase terminal-interacting protein 1
Chain IDs:A
Chain Length:122
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
Structural and functional characterization of a cell cycle associated HDAC1/2 complex reveals the structural basis for complex assembly and nucleosome targeting.
Nucleic Acids Res. 43 2033 2044 (2015)
PMID: 25653165 DOI: 10.1093/nar/gkv068

Abstact

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.

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Primary Citation of related structures