1N6J

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.243 
  • R-Value Observed: 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
  • Primary Citation of Related Structures:  
    1N6J

  • 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 variety of co-repressors or co-activators in a calcium-dependent manner ...

    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

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Myocyte-specific enhancer factor 2BC [auth A], D [auth B]93Homo sapiensMutation(s): 0 
Gene Names: MEF2B OR XMEF2MEF2BXMEF2
UniProt & NIH Common Fund Data Resources
Find proteins for Q02080 (Homo sapiens)
Explore Q02080 
Go to UniProtKB:  Q02080
PHAROS:  Q02080
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Calcineurin-binding protein Cabin 1E [auth G]35Homo sapiensMutation(s): 0 
Gene Names: CABIN1 OR KIAA0330CABIN1KIAA0330
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y6J0 (Homo sapiens)
Explore Q9Y6J0 
Go to UniProtKB:  Q9Y6J0
PHAROS:  Q9Y6J0
Protein Feature View
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  • Reference Sequence
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  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    5'-D(*AP*GP*CP*TP*AP*TP*TP*TP*AP*TP*AP*AP*GP*C)-3'A [auth C]14N/A
    Protein Feature View
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    • Reference Sequence
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    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      5'-D(*GP*CP*TP*TP*AP*TP*AP*AP*AP*TP*AP*GP*CP*T)-3'B [auth D]14N/A
      Protein Feature View
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      • Reference Sequence
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 2.20 Å
      • R-Value Free: 0.268 
      • R-Value Work: 0.243 
      • R-Value Observed: 0.243 
      • Space Group: P 41 2 2
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 70.14α = 90
      b = 70.14β = 90
      c = 151.88γ = 90
      Software Package:
      Software NamePurpose
      DENZOdata reduction
      SCALEPACKdata scaling
      CNSrefinement
      CNSphasing

      Structure Validation

      View Full Validation Report




      Entry History 

      Deposition Data

      Revision History  (Full details and data files)

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