1N6J

Structural basis of sequence-specific recruitment of histone deacetylases by Myocyte Enhancer Factor-2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.243 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Sequence-specific recruitment of transcriptional co-repressor Cabin1 by myocyte enhancer factor-2

Han, A.Pan, F.Stroud, J.C.Youn, H.D.Liu, J.O.Chen, L.

(2003) Nature 422: 730-734

  • DOI: 10.1038/nature01555

  • PubMed Abstract: 
  • The myocyte enhancer factor-2 (MEF2) family of transcription factors has important roles in the development and function of T cells, neuronal cells and muscle cells. MEF2 is capable of repressing or activating transcription by association with a vari ...

    The myocyte enhancer factor-2 (MEF2) family of transcription factors has important roles in the development and function of T cells, neuronal cells and muscle cells. MEF2 is capable of repressing or activating transcription by association with a variety of co-repressors or co-activators in a calcium-dependent manner. Transcriptional repression by MEF2 has attracted particular attention because of its potential role in hypertrophic responses of cardiomyocytes. Several MEF2 co-repressors, such as Cabin1/Cain and class II histone deacetylases (HDACs), have been identified. However, the molecular mechanism of their recruitment to specific promoters by MEF2 remains largely unknown. Here we report a crystal structure of the MADS-box/MEF2S domain of human MEF2B bound to a motif of the transcriptional co-repressor Cabin1 and DNA at 2.2 A resolution. The crystal structure reveals a stably folded MEF2S domain on the surface of the MADS box. Cabin1 adopts an amphipathic alpha-helix to bind a hydrophobic groove on the MEF2S domain, forming a triple-helical interaction. Our studies of the ternary Cabin1/MEF2/DNA complex show a general mechanism by which MEF2 recruits transcriptional co-repressor Cabin1 and class II HDACs to specific DNA sites.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, Colorado 80309-0215, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Myocyte-specific enhancer factor 2B
A, B
93Homo sapiensMutation(s): 0 
Gene Names: MEF2B (XMEF2)
Find proteins for Q02080 (Homo sapiens)
Go to Gene View: MEF2B
Go to UniProtKB:  Q02080
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Calcineurin-binding protein Cabin 1
G
35Homo sapiensMutation(s): 0 
Gene Names: CABIN1 (KIAA0330)
Find proteins for Q9Y6J0 (Homo sapiens)
Go to Gene View: CABIN1
Go to UniProtKB:  Q9Y6J0
Entity ID: 1
MoleculeChainsLengthOrganism
5'-D(*AP*GP*CP*TP*AP*TP*TP*TP*AP*TP*AP*AP*GP*C)-3'C14N/A
Entity ID: 2
MoleculeChainsLengthOrganism
5'-D(*GP*CP*TP*TP*AP*TP*AP*AP*AP*TP*AP*GP*CP*T)-3'D14N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.243 
  • Space Group: P 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 70.140α = 90.00
b = 70.140β = 90.00
c = 151.880γ = 90.00
Software Package:
Software NamePurpose
CNSphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-11-11
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2015-09-09
    Type: Version format compliance