2IF5

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.229 

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

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Zinc finger and BTB domain-containing protein 7A
A
120Homo sapiensMutation(s): 0 
Gene Names: ZBTB7A (FBI1, LRF, ZBTB7, ZNF857A)
Find proteins for O95365 (Homo sapiens)
Go to Gene View: ZBTB7A
Go to UniProtKB:  O95365
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PR
Query on PR

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.229 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 65.850α = 90.00
b = 65.850β = 90.00
c = 162.603γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data scaling
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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