2NNU

Crystal Structure of the Papillomavirus DNA Tethering Complex E2:Brd4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the Papillomavirus DNA-Tethering Complex E2:Brd4 and a Peptide that Ablates HPV Chromosomal Association.

Abbate, E.A.Voitenleitner, C.Botchan, M.R.

(2006) Mol.Cell 24: 877-889

  • DOI: 10.1016/j.molcel.2006.11.002

  • PubMed Abstract: 
  • Many DNA viruses that are latent in dividing cells are noncovalent passengers on mitotic chromosomes and require specific viral-encoded and cellular factors for this activity. The chromosomal protein Brd4 is implicated in the hitchhiking of bovine pa ...

    Many DNA viruses that are latent in dividing cells are noncovalent passengers on mitotic chromosomes and require specific viral-encoded and cellular factors for this activity. The chromosomal protein Brd4 is implicated in the hitchhiking of bovine papillomavirus-1 (BPV-1), and the viral protein E2 binds to both plasmids and Brd4. Here, we present the X-ray crystal structure of the carboxy-terminal domain of Brd4 in complex with HPV-16 E2, and with this information have developed a Brd4-Tat fusion protein that is efficiently taken up by different transformed cells harboring HPV plasmids. In cells treated with these fusion proteins for only 2 hr and arrested in metaphase, the HPV DNA, either HPV-16 or -31, is displaced from mitotic chromosomes. Mutant Brd4 peptides are deficient in ablating this association. We suggest that such peptides may lead to the development of inhibitors of latency for many, if not all, papillomaviruses.


    Organizational Affiliation

    Department of Molecular and Cell Biology, Division of Biochemistry and Molecular Biology, University of California, Berkeley, Berkeley, California 94720, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Regulatory protein E2
A
205Human papillomavirus type 16Mutation(s): 0 
Gene Names: E2
Find proteins for P03120 (Human papillomavirus type 16)
Go to UniProtKB:  P03120
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Bromodomain-containing protein 4
B
22Homo sapiensMutation(s): 0 
Gene Names: BRD4 (HUNK1)
Find proteins for O60885 (Homo sapiens)
Go to Gene View: BRD4
Go to UniProtKB:  O60885
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.200 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 52.892α = 90.00
b = 94.589β = 90.00
c = 119.691γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
Blu-Icedata collection
REFMACrefinement
PHASERphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-01-09
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance