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 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 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: https://doi.org/10.1007/s00018-010-0618-x
  • Primary Citation of Related Structures:  
    2WBS, 2WBU

  • 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 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)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
KRUEPPEL-LIKE FACTOR 490Mus musculusMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q60793 (Mus musculus)
Explore Q60793 
Go to UniProtKB:  Q60793
IMPC:  MGI:1342287
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ60793
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains LengthOrganismImage
5'-D(*DGP*DAP*DGP*DGP*DCP*DGP*DTP* DGP*DGP*DC)-3'10N/A
Sequence Annotations
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  • Reference Sequence

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Entity ID: 3
MoleculeChains LengthOrganismImage
5'-D(*DGP*DCP*DCP*DAP*DCP*DGP*DCP* DCP*DTP*DC)-3'10N/A
Sequence Annotations
Expand
  • Reference Sequence
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

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • 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
  • Version 1.3: 2023-12-13
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description