1EGW

CRYSTAL STRUCTURE OF MEF2A CORE BOUND TO DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of MEF2A core bound to DNA at 1.5 A resolution.

Santelli, E.Richmond, T.J.

(2000) J.Mol.Biol. 297: 437-449

  • DOI: 10.1006/jmbi.2000.3568

  • PubMed Abstract: 
  • Members of the myocyte enhancer factor-2 (MEF2) family of transcription factors bind to and activate transcription through A+T-rich DNA sequences found primarily, but not exclusively, in the promoters of muscle-specific genes. Their importance has be ...

    Members of the myocyte enhancer factor-2 (MEF2) family of transcription factors bind to and activate transcription through A+T-rich DNA sequences found primarily, but not exclusively, in the promoters of muscle-specific genes. Their importance has been established for myogenic development and in activation of the immediate-early gene, c-jun, and recently further functional roles in the immune system have emerged. The MEF2 factors belong to the MADS-box superfamily, sharing homology in a 58 amino acid domain that mediates DNA binding and dimerization. The structures of two MADS-box proteins, SRF and MCM1, bound to their cognate DNA have been previously reported and shown to share extensive similarity in their mode of DNA binding. We have solved the structure of MEF2A 2-78 bound to its DNA consensus sequence at 1.5 A resolution. It reveals how the absence of amino acids N-terminal to the MADS-box contributes to the DNA binding properties of MEF2 proteins and shows that the MEF domain C-terminal to the MADS-box adopts a conformation considerably different from the same region in SRF and MCM1.


    Organizational Affiliation

    Institut für Molekularbiologie und Biophysik, ETH Zurich, Zürich, CH, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
MADS BOX TRANSCRIPTION ENHANCER FACTOR 2, POLYPEPTIDE A
A, B, C, D
77Homo sapiensGene Names: MEF2A (MEF2)
Find proteins for Q02078 (Homo sapiens)
Go to Gene View: MEF2A
Go to UniProtKB:  Q02078
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*AP*AP*AP*GP*CP*TP*AP*TP*TP*AP*TP*TP*AP*GP*CP*TP*T)-3')E,H17N/A
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*TP*AP*AP*GP*CP*TP*AP*AP*TP*AP*AP*TP*AP*GP*CP*TP*T)-3')F,G17N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.206 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 41.371α = 115.18
b = 60.696β = 89.99
c = 63.987γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
MLPHAREphasing
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-03-20
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance