4L0Z

Crystal structure of Runx1 and Ets1 bound to TCR alpha promoter (crystal form 2)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.220 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis of Ets1 activation by Runx1.

Shrivastava, T.Mino, K.Babayeva, N.D.Baranovskaya, O.I.Rizzino, A.Tahirov, T.H.

(2014) Leukemia 28: 2040-2048

  • DOI: 10.1038/leu.2014.111
  • Primary Citation of Related Structures:  
    4L18, 4L0Y, 4L0Z

  • PubMed Abstract: 
  • Runx1 is required for definitive hematopoiesis and is well known for its frequent chromosomal translocations and point mutations in leukemia. Runx1 regulates a variety of genes via Ets1 activation on an Ets1•Runx1 composite DNA sequence. The structur ...

    Runx1 is required for definitive hematopoiesis and is well known for its frequent chromosomal translocations and point mutations in leukemia. Runx1 regulates a variety of genes via Ets1 activation on an Ets1•Runx1 composite DNA sequence. The structural basis of such regulation remains unresolved. To address this problem, we determined the crystal structure of the ternary complex containing Runx1(1-242) and Ets1(296-441) bound to T-cell receptor alpha (TCRα) enhancer DNA. In the crystal, an Ets1-interacting domain of Runx1 is bound to the Ets1 DNA-binding domain and displaced an entire autoinhibitory module of Ets1, revealing a novel mechanism of Ets1 activation. The DNA-binding and transcriptional studies with a variety of structure-guided Runx1 mutants confirmed a critical role of direct Ets1•Runx1 interaction in Ets1 activation. More importantly, the discovered mechanism provides a plausible explanation for how the Ets1•Runx1 interaction effectively activates not only a wild-type Ets1, but also a highly inhibited phosphorylated form of Ets1.


    Organizational Affiliation

    Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Runt-related transcription factor 1A242Mus musculusMutation(s): 0 
Gene Names: Aml1Cbfa2Pebp2abRunx1
Find proteins for Q03347 (Mus musculus)
Explore Q03347 
Go to UniProtKB:  Q03347
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Protein C-ets-1B146Homo sapiensMutation(s): 0 
Gene Names: ETS1EWSR2
Find proteins for P14921 (Homo sapiens)
Explore P14921 
Go to UniProtKB:  P14921
NIH Common Fund Data Resources
PHAROS  P14921
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 3
    MoleculeChainsLengthOrganismImage
    5'-D(*GP*GP*AP*AP*GP*CP*CP*AP*CP*AP*TP*CP*CP*TP*CP*T)-3'C16Homo sapiens
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 4
      MoleculeChainsLengthOrganismImage
      5'-D(*CP*AP*GP*AP*GP*GP*AP*TP*GP*TP*GP*GP*CP*TP*TP*C)-3'D16Homo sapiens
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 2.70 Å
      • R-Value Free: 0.272 
      • R-Value Work: 0.220 
      • R-Value Observed: 0.220 
      • Space Group: C 1 2 1
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 87.343α = 90
      b = 100.14β = 120.49
      c = 67.225γ = 90
      Software Package:
      Software NamePurpose
      ADSCdata collection
      CNSrefinement
      HKL-2000data reduction
      HKL-2000data scaling
      CNSphasing

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      • Deposited Date: 2013-06-01 
      • Released Date: 2014-03-26 
      • Deposition Author(s): Tahirov, T.H.

      Revision History 

      • Version 1.0: 2014-03-26
        Type: Initial release
      • Version 1.1: 2014-04-02
        Changes: Database references
      • Version 1.2: 2014-10-22
        Changes: Database references