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 

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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 XMEF2, MEF2B, XMEF2
UniProt & NIH Common Fund Data Resources
Find proteins for Q02080 (Homo sapiens)
Explore Q02080 
Go to UniProtKB:  Q02080
PHAROS:  Q02080
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ02080
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Calcineurin-binding protein Cabin 1E [auth G]35Homo sapiensMutation(s): 0 
Gene Names: CABIN1 OR KIAA0330, CABIN1, KIAA0330
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y6J0 (Homo sapiens)
Explore Q9Y6J0 
Go to UniProtKB:  Q9Y6J0
PHAROS:  Q9Y6J0
Entity Groups  
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UniProt GroupQ9Y6J0
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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

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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