2IF5

Structure of the POZ domain of human LRF, a master regulator of oncogenesis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the POZ domain of human LRF, a master regulator of oncogenesis.

Schubot, F.D.Tropea, J.E.Waugh, D.S.

(2006) Biochem Biophys Res Commun 351: 1-6

  • DOI: 10.1016/j.bbrc.2006.09.167
  • Primary Citation of Related Structures:  
    2IF5

  • PubMed Abstract: 
  • The proto-oncogenic properties of the POK family of transcriptional repressors BCL6, PLZF, and LRF have been well established. These proteins utilize their amino-terminal POZ domains for multimerization and the recruitment of co-repressors. Because L ...

    The proto-oncogenic properties of the POK family of transcriptional repressors BCL6, PLZF, and LRF have been well established. These proteins utilize their amino-terminal POZ domains for multimerization and the recruitment of co-repressors. Because LRF represses the production of the tumor suppressor p19(Arf) (ARF), it is regarded as an attractive therapeutic target for the treatment of many types of cancer. The crystal structure of the LRF POZ domain reveals a high degree of structural conservation with the corresponding domains of BCL6 and PLZF. However, striking differences between the electrostatic properties of the BCL6 and LRF POZ domains suggest that if, like BCL6, LRF interacts with the co-repressor SMRT, it almost certainly uses a different mechanism to do so. These differences may also explain why LRF interacts with BCL6 but not with PLZF. Finally, the conservation of crystal packing contacts suggests the probable location of the interface that mediates LRF/BCL6 complex formation.


    Organizational Affiliation

    Macromolecular Crystallography Laboratory, National Cancer Institute at Frederick, P.O. Box B, Frederick, MD 21702-1201, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Zinc finger and BTB domain-containing protein 7AA120Homo sapiensMutation(s): 0 
Gene Names: ZBTB7AFBI1LRFZBTB7ZNF857A
Find proteins for O95365 (Homo sapiens)
Explore O95365 
Go to UniProtKB:  O95365
NIH Common Fund Data Resources
PHAROS  O95365
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PR
Query on PR

Download CCD File 
A
PRASEODYMIUM ION
Pr
WCWKKSOQLQEJTE-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.232 
  • Space Group: I 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.85α = 90
b = 65.85β = 90
c = 162.603γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-11-21
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Derived calculations, Version format compliance