1EQX

SOLUTION STRUCTURE DETERMINATION AND MUTATIONAL ANALYSIS OF THE PAPILLOMAVIRUS E6-INTERACTING PEPTIDE OF E6AP


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 24 
  • Selection Criteria: structures with acceptable covalent geometry, structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution structure determination and mutational analysis of the papillomavirus E6 interacting peptide of E6AP.

Be, X.Hong, Y.Wei, J.Androphy, E.J.Chen, J.J.Baleja, J.D.

(2001) Biochemistry 40: 1293-1299


  • PubMed Abstract: 
  • E6AP is a cellular protein that binds cancer-related papillomaviral E6 proteins. The E6 binding domain, called E6ap, is located on an 18-amino acid segment of E6AP. The corresponding peptide was synthesized and its structure determined by nuclear mag ...

    E6AP is a cellular protein that binds cancer-related papillomaviral E6 proteins. The E6 binding domain, called E6ap, is located on an 18-amino acid segment of E6AP. The corresponding peptide was synthesized and its structure determined by nuclear magnetic resonance spectroscopy. The overall structure of the peptide is helical. A consensus E6-binding sequence among different E6 interacting proteins contains three conserved hydrophobic residues. In the structure of the E6AP peptide, the three conserved leucines (Leu 9, Leu 12, and Leu 13) form a hydrophobic patch on one face of the alpha-helix. Substitution of any of these leucines with alanine abolished binding to E6 protein, indicating that the entire hydrophobic patch is necessary. Mutation of a glutamate to proline, but not alanine, also disrupted the interaction between E6 and E6AP protein, suggesting that the E6-binding motif of the E6AP protein must be helical when bound to E6. Comparison of the E6ap structure and mutational results with those of another E6-binding protein (E6BP/ERC-55) indicates the existence of a general E6-binding motif.


    Organizational Affiliation

    Department of Biochemistry, Tufts University School of Medicine, 136 Harrison Avenue, Boston, Massachusetts 02111, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PAPILLOMAVIRUS E6-ASSOCIATED PROTEIN
A
18Homo sapiensGene Names: UBE3A (E6AP, EPVE6AP, HPVE6A)
EC: 6.3.2.-
Find proteins for Q05086 (Homo sapiens)
Go to Gene View: UBE3A
Go to UniProtKB:  Q05086
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 24 
  • Selection Criteria: structures with acceptable covalent geometry, structures with the least restraint violations 
  • Olderado: 1EQX Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-02-28
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance