2WBU

CRYSTAL STRUCTURE OF THE ZINC FINGER DOMAIN OF KLF4 BOUND TO ITS TARGET DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.220 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The Structure of the Klf4 DNA-Binding Domain Links to Self-Renewal and Macrophage Differentiation.

Schuetz, A.Nana, D.Rose, C.Zocher, G.Milanovic, M.Koenigsmann, J.Blasig, R.Heinemann, U.Carstanjen, D.

(2011) Cell Mol Life Sci 68: 3121

  • DOI: 10.1007/s00018-010-0618-x
  • Primary Citation of Related Structures:  
    2WBU, 2WBS

  • PubMed Abstract: 
  • Krueppel-like factor 4 (Klf4) belongs to the Sp/Klf family of zinc-finger transcription factors and is indispensable for terminal maturation of epithelial tissues. Furthermore, it is part of a small set of proteins that are used to generate pluripotent e ...

    Krueppel-like factor 4 (Klf4) belongs to the Sp/Klf family of zinc-finger transcription factors and is indispensable for terminal maturation of epithelial tissues. Furthermore, it is part of a small set of proteins that are used to generate pluripotent embryonic stem cells from differentiated tissues. Herein, we describe that a Klf4 zinc-finger domain mutant induces self-renewal and block of maturation, while wild-type Klf4 induces terminal macrophage differentiation. Moreover, we present the crystal structure of the zinc-finger domain of Klf4 bound to its target DNA, revealing that primarily the two C-terminal zinc-finger motifs are required for site specificity. Lack of those two zinc fingers leads to deficiency of Klf4 to induce macrophage differentiation. The first zinc finger, on the other hand, inhibits the otherwise cryptic self-renewal and block of differentiation activity of Klf4. Our data show that impairing the DNA binding could potentially contribute to a monocytic leukemia.


    Organizational Affiliation

    Protein Sample Production Facility, Max-Delbrück-Centrum für Molekulare Medizin, Robert-Rössle-Str. 10, 13125 Berlin, Germany.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
KRUEPPEL-LIKE FACTOR 4 A90Mus musculusMutation(s): 0 
Gene Names: Klf4EzfGklfZie
Find proteins for Q60793 (Mus musculus)
Explore Q60793 
Go to UniProtKB:  Q60793
NIH Common Fund Data Resources
IMPC:  MGI:1342287
Protein Feature View
Expand
  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 2
    MoleculeChainsLengthOrganismImage
    5'-D(*DGP*DAP*DGP*DGP*DCP*DGP*DTP* DGP*DGP*DC)-3'B10N/A
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 3
      MoleculeChainsLengthOrganismImage
      5'-D(*DGP*DCP*DCP*DAP*DCP*DGP*DCP* DCP*DTP*DC)-3'C10N/A
      Small Molecules
      Ligands 1 Unique
      IDChainsName / Formula / InChI Key2D Diagram3D Interactions
      ZN
      Query on ZN

      Download Ideal Coordinates CCD File 
      A
      ZINC ION
      Zn
      PTFCDOFLOPIGGS-UHFFFAOYSA-N
       Ligand Interaction
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 2.50 Å
      • R-Value Free: 0.278 
      • R-Value Work: 0.214 
      • R-Value Observed: 0.220 
      • Space Group: P 43 21 2
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 50.275α = 90
      b = 50.275β = 90
      c = 131.027γ = 90
      Software Package:
      Software NamePurpose
      REFMACrefinement
      XDSdata reduction
      XDSdata scaling
      PHASERphasing

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      Revision History 

      • Version 1.0: 2010-04-07
        Type: Initial release
      • Version 1.1: 2011-07-13
        Changes: Advisory, Version format compliance
      • Version 1.2: 2011-10-05
        Changes: Database references, Source and taxonomy, Structure summary