Macromolecule Content

• Total Structure Weight: 2.10 kDa 
• Atom Count: 147 
• Modelled Residue Count: 18 
• Deposited Residue Count: 18 
• Unique protein chains: 1

1EQX

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

• DOI: 10.2210/pdb1EQX/pdb
• BMRB: 4607

• Classification: LIGASE
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2000-04-06 Released: 2001-02-28 
• Deposition Author(s): Be, X., Hong, Y., Androphy, E.J., Chen, J.J., Baleja, J.D.

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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 

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: 11170455 
• DOI: 10.1021/bi0019592
• Primary Citation of Related Structures:  
  1EQX


• 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 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PAPILLOMAVIRUS E6-ASSOCIATED PROTEIN	A	18	Homo sapiens	Mutation(s): 0  Gene Names: UBE3A, E6AP, EPVE6AP, HPVE6A EC: 6.3.2 (PDB Primary Data), 2.3.2.26 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q05086 (Homo sapiens) Explore Q05086  Go to UniProtKB:  Q05086
PHAROS:  Q05086 GTEx:  ENSG00000114062

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

Entry History 

Deposition Data

• Deposited Date: 2000-04-06 
• Released Date: 2001-02-28 
Deposition Author(s): Be, X., Hong, Y., Androphy, E.J., Chen, J.J., Baleja, J.D.

Revision History  

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