3CO7

Crystal Structure of FoxO1 DBD Bound to DBE2 DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.91 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.267 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Basis for DNA Recognition by FoxO1 and Its Regulation by Posttranslational Modification.

Brent, M.M.Anand, R.Marmorstein, R.

(2008) Structure 16: 1407-1416

  • DOI: 10.1016/j.str.2008.06.013
  • Primary Citation of Related Structures:  
    3CO7, 3CO6, 3COA

  • PubMed Abstract: 
  • FoxO transcription factors regulate the transcription of genes that control metabolism, cellular proliferation, stress tolerance, and possibly life span. A number of posttranslational modifications within the forkhead DNA-binding domain regulate FoxO ...

    FoxO transcription factors regulate the transcription of genes that control metabolism, cellular proliferation, stress tolerance, and possibly life span. A number of posttranslational modifications within the forkhead DNA-binding domain regulate FoxO-mediated transcription. We describe the crystal structures of FoxO1 bound to three different DNA elements and measure the change in FoxO1-DNA affinity with acetylation and phosphorylation. The structures reveal additional contacts and increased DNA distortion for the highest affinity DNA site. The flexible wing 2 region of the forkhead domain was not observed in the structures but is necessary for DNA binding, and we show that p300 acetylation in wing 2 reduces DNA affinity. We also show that MST1 phosphorylation of FoxO1 prevents high-affinity DNA binding. The observation that FoxO-DNA affinity varies between response elements and with posttranslational modifications suggests that modulation of FoxO-DNA affinity is an important component of FoxO regulation in health and misregulation in disease.


    Organizational Affiliation

    The Wistar Institute, University of Pennsylvania, Philadelphia, PA 19104, USA; The Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Forkhead box protein O1CF117Homo sapiensMutation(s): 0 
Gene Names: FOXO1FKHRFOXO1A
Find proteins for Q12778 (Homo sapiens)
Explore Q12778 
Go to UniProtKB:  Q12778
NIH Common Fund Data Resources
PHAROS  Q12778
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*DTP*DCP*DTP*DTP*DGP*DTP*DTP*DTP*DAP*DCP*DAP*DTP*DTP*DTP*DTP*DG)-3')A, D16N/A
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      DNA (5'-D(*DCP*DAP*DAP*DAP*DAP*DTP*DGP*DTP*DAP*DAP*DAP*DCP*DAP*DAP*DGP*DA)-3')B, E16N/A
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 2.91 Å
      • R-Value Free: 0.276 
      • R-Value Work: 0.267 
      • Space Group: P 32
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 99.641α = 90
      b = 99.641β = 90
      c = 98.468γ = 120
      Software Package:
      Software NamePurpose
      DENZOdata reduction
      SCALEPACKdata scaling
      CNSrefinement
      PDB_EXTRACTdata extraction
      PHASERphasing

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      Revision History 

      • Version 1.0: 2008-09-16
        Type: Initial release
      • Version 1.1: 2011-07-13
        Changes: Version format compliance
      • Version 1.2: 2017-10-25
        Changes: Refinement description