4DJB

A Structural Basis for the Assembly and Functions of a Viral Polymer that Inactivates Multiple Tumor Suppressors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.053 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.212 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

A Structural Basis for the Assembly and Functions of a Viral Polymer that Inactivates Multiple Tumor Suppressors.

Ou, H.D.Kwiatkowski, W.Deerinck, T.J.Noske, A.Blain, K.Y.Land, H.S.Soria, C.Powers, C.J.May, A.P.Shu, X.Tsien, R.Y.Fitzpatrick, J.A.Long, J.A.Ellisman, M.H.Choe, S.O'Shea, C.C.

(2012) Cell 151: 304-319

  • DOI: 10.1016/j.cell.2012.08.035

  • PubMed Abstract: 
  • Evolution of minimal DNA tumor virus' genomes has selected for small viral oncoproteins that hijack critical cellular protein interaction networks. The structural basis for the multiple and dominant functions of adenovirus oncoproteins has remained e ...

    Evolution of minimal DNA tumor virus' genomes has selected for small viral oncoproteins that hijack critical cellular protein interaction networks. The structural basis for the multiple and dominant functions of adenovirus oncoproteins has remained elusive. E4-ORF3 forms a nuclear polymer and simultaneously inactivates p53, PML, TRIM24, and MRE11/RAD50/NBS1 (MRN) tumor suppressors. We identify oligomerization mutants and solve the crystal structure of E4-ORF3. E4-ORF3 forms a dimer with a central β core, and its structure is unrelated to known polymers or oncogenes. E4-ORF3 dimer units coassemble through reciprocal and nonreciprocal exchanges of their C-terminal tails. This results in linear and branched oligomer chains that further assemble in variable arrangements to form a polymer network that partitions the nuclear volume. E4-ORF3 assembly creates avidity-driven interactions with PML and an emergent MRN binding interface. This reveals an elegant structural solution whereby a small protein forms a multivalent matrix that traps disparate tumor suppressors.


    Organizational Affiliation

    Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
E4-ORF3
A, B
130Human adenovirus C serotype 5Mutation(s): 3 
Find proteins for P04489 (Human adenovirus C serotype 5)
Go to UniProtKB:  P04489
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.053 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.212 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 56.429α = 90.00
b = 67.222β = 90.00
c = 87.340γ = 90.00
Software Package:
Software NamePurpose
SHARPphasing
HKL-2000data reduction
Blu-Icedata collection
HKL-2000data scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-10-31
    Type: Initial release
  • Version 1.1: 2018-01-24
    Type: Structure summary