1XC5

Solution Structure of the SMRT Deacetylase Activation Domain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 28 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural insights into the interaction and activation of histone deacetylase 3 by nuclear receptor corepressors

Codina, A.Love, J.D.Li, Y.Lazar, M.A.Neuhaus, D.Schwabe, J.W.R.

(2005) Proc.Natl.Acad.Sci.Usa 102: 6009-6014

  • DOI: 10.1073/pnas.0500299102

  • PubMed Abstract: 
  • SMRT (silencing mediator of retinoid acid and thyroid hormone receptor) and NCoR (nuclear receptor corepressor) are transcriptional corepressors that play an essential role in the regulation of development and metabolism. This role is achieved, in pa ...

    SMRT (silencing mediator of retinoid acid and thyroid hormone receptor) and NCoR (nuclear receptor corepressor) are transcriptional corepressors that play an essential role in the regulation of development and metabolism. This role is achieved, in part, through the recruitment of a key histone deacetylase (HDAC3), which is itself indispensable for cell viability. The assembly of HDAC3 with the deacetylase activation domain (DAD) of SMRT and NCoR is required for activation of the otherwise inert deacetylase. The DAD comprises an N-terminal DAD-specific motif and a C-terminal SANT (SWI3/ADA2/NCoR/TFIIIB)-like domain. We report here the solution structure of the DAD from SMRT, which reveals a four-helical structure. The DAD differs from the SANT (and MYB) domains in that (i) it has an additional N-terminal helix and (ii) there is a notable hydrophobic groove on the surface of the domain. Structure-guided mutagenesis, combined with interaction assays, showed that residues in the vicinity of the hydrophobic groove are required for interaction with (and hence activation of) HDAC3. Importantly, one surface-exposed lysine is required for activation of HDAC3, but not for interaction. This lysine may play a uniquely important role in the mechanism of activating HDAC3.


    Organizational Affiliation

    Medical Research Council, Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nuclear receptor corepressor 2
A
71Homo sapiensMutation(s): 0 
Gene Names: NCOR2 (CTG26)
Find proteins for Q9Y618 (Homo sapiens)
Go to Gene View: NCOR2
Go to UniProtKB:  Q9Y618
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 28 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1XC5 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-05-03
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance