4GIZ

Crystal structure of full-length human papillomavirus oncoprotein E6 in complex with LXXLL peptide of ubiquitin ligase E6AP at 2.55 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.166 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for hijacking of cellular LxxLL motifs by papillomavirus E6 oncoproteins.

Zanier, K.Charbonnier, S.Sidi, A.O.McEwen, A.G.Ferrario, M.G.Poussin-Courmontagne, P.Cura, V.Brimer, N.Babah, K.O.Ansari, T.Muller, I.Stote, R.H.Cavarelli, J.Vande Pol, S.Trave, G.

(2013) Science 339: 694-698

  • DOI: 10.1126/science.1229934
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • E6 viral oncoproteins are key players in epithelial tumors induced by papillomaviruses in vertebrates, including cervical cancer in humans. E6 proteins target many host proteins by specifically interacting with acidic LxxLL motifs. We solved the crys ...

    E6 viral oncoproteins are key players in epithelial tumors induced by papillomaviruses in vertebrates, including cervical cancer in humans. E6 proteins target many host proteins by specifically interacting with acidic LxxLL motifs. We solved the crystal structures of bovine (BPV1) and human (HPV16) papillomavirus E6 proteins bound to LxxLL peptides from the focal adhesion protein paxillin and the ubiquitin ligase E6AP, respectively. In both E6 proteins, two zinc domains and a linker helix form a basic-hydrophobic pocket, which captures helical LxxLL motifs in a way compatible with other interaction modes. Mutational inactivation of the LxxLL binding pocket disrupts the oncogenic activities of both E6 proteins. This work reveals the structural basis of both the multifunctionality and the oncogenicity of E6 proteins.


    Organizational Affiliation

    Biotechnologie et Signalisation Cellulaire UMR 7242, Ecole Supérieure de Biotechnologie de Strasbourg, Boulevard Sébastien Brant, BP 10413, F-67412 Illkirch, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Maltose-binding periplasmic protein, UBIQUITIN LIGASE EA6P: chimeric protein
A, B
382Escherichia coli (strain K12)Homo sapiens
This entity is chimeric
Mutations: A239K, A362K, A363D, A359E, A83K, A82D
Gene Names: malE, UBE3A (E6AP, EPVE6AP, HPVE6A)
EC: 2.3.2.26
Find proteins for P0AEX9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AEX9
Find proteins for Q05086 (Homo sapiens)
Go to Gene View: UBE3A
Go to UniProtKB:  Q05086
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Protein E6
C, D
142Human papillomavirus type 16Mutations: R46F, S110C, S79C, S96C, S139C
Gene Names: E6
Find proteins for P03126 (Human papillomavirus type 16)
Go to UniProtKB:  P03126
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
C, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CEY
Query on CEY

Download SDF File 
Download CCD File 
A, B
alpha-D-glucopyranosyl-(1->4)-alpha-D-glucopyranosyl-(1->4)-alpha-D-glucopyranosyl-(1->4)-alpha-D-glucopyranosyl-(1->4)-alpha-D-glucopyranosyl-(1->4)-alpha-D-glucopyranose
maltohexaose
C36 H62 O31
OCIBBXPLUVYKCH-QXVNYKTNSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.166 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 106.279α = 90.00
b = 134.936β = 90.00
c = 138.794γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
HKL-2000data collection
BUSTERrefinement
HKL-2000data scaling
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-01-23
    Type: Initial release
  • Version 1.1: 2013-03-06
    Type: Database references
  • Version 1.2: 2017-08-09
    Type: Data collection, Refinement description, Source and taxonomy