1C7U

Complex of the DNA binding core domain of the transcription factor MEF2A with a 20mer oligonucleotide

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 35 
  • Conformers Submitted: 1 
  • Selection Criteria: REGULARIZED MEAN STRUCTURE 

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This is version 1.2 of the entry. See complete history. 


Literature

Solution structure of the MEF2A-DNA complex: structural basis for the modulation of DNA bending and specificity by MADS-box transcription factors

Huang, K., Louis, J.M., Donaldson, L., Lim, F.L., Sharrocks, A.D., Clore, G.M.

(2000) EMBO J 19: 2615-2628

  • DOI: 10.1093/emboj/19.11.2615
  • Primary Citation of Related Structures:  
    1C7U

  • PubMed Abstract: 

    • The solution structure of the 33 kDa complex between the dimeric DNA-binding core domain of the transcription factor MEF2A (residues 1-85) and a 20mer DNA oligonucleotide comprising the consensus sequence CTA(A/T)(4)TAG has been solved by NMR. The protein comprises two domains: a MADS-box (residues 1-58) and a MEF2S domain (residues 59-73) ...

    The solution structure of the 33 kDa complex between the dimeric DNA-binding core domain of the transcription factor MEF2A (residues 1-85) and a 20mer DNA oligonucleotide comprising the consensus sequence CTA(A/T)(4)TAG has been solved by NMR. The protein comprises two domains: a MADS-box (residues 1-58) and a MEF2S domain (residues 59-73). Recognition and specificity are achieved by interactions between the MADS-box and both the major and minor grooves of the DNA. A number of critical differences in protein-DNA contacts observed in the MEF2A-DNA complex and the DNA complexes of the related MADS-box transcription factors SRF and MCM1 provide a molecular explanation for modulation of sequence specificity and extent of DNA bending ( approximately 15 versus approximately 70 degrees ). The structure of the MEF2S domain is entirely different from that of the equivalent SAM domain in SRF and MCM1, accounting for the absence of cross-reactivity with other proteins that interact with these transcription factors.

    Organizational Affiliation: 

    Laboratory of Chemical Physics, Building 5, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0510, USA.



Macromolecules

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(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
MYOCYTE-SPECIFIC ENHANCER FACTOR 2A, C4 FORMC [auth A], D [auth B]85Homo sapiensMutation(s): 0 
Gene Names: MEF2A, MEF2
UniProt & NIH Common Fund Data Resources
Find proteins for Q02078 (Homo sapiens)
Explore Q02078 
Go to UniProtKB:  Q02078
PHAROS:  Q02078
GTEx:  ENSG00000068305
Protein Feature View
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  • Reference Sequence
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    • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    5'-D(*CP*TP*CP*GP*GP*CP*TP*AP*TP*TP*AP*AP*TP*AP*GP*CP*CP*GP*AP*G)-3'A [auth C], B [auth D]20N/A
    Protein Feature View
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    • Reference Sequence
    Experimental Data & Validation

    Experimental Data

    • Method: SOLUTION NMR
    • Conformers Calculated: 35 
    • Conformers Submitted: 1 
    • Selection Criteria: REGULARIZED MEAN STRUCTURE 
    • OLDERADO: 1C7U Olderado

    Structure Validation

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    Entry History 

    Deposition Data

    • Deposited Date: 2000-03-17 
    • Released Date: 2000-03-27 
      • Deposition Author(s): Clore, G.M., Huang, K.

    Revision History  (Full details and data files)

    • Version 1.0: 2000-03-27
      Type: Initial release
    • Version 1.1: 2008-04-26
      Changes: Version format compliance
    • Version 1.2: 2011-07-13
      Changes: Version format compliance