2KPL

MAGI-1 PDZ1 / E6CT


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 64 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The structural and dynamic response of MAGI-1 PDZ1 with non-canonical domain boundaries to binding of human papillomavirus (HPV) E6

Charbonnier, S.Nomine, Y.Ramirez, J.Luck, K.Chapelle, A.Stote, R.H.Trave, G.Kieffer, B.Atkinson, R.A.

(2011) J.Mol.Biol. --: --

  • DOI: 10.1016/j.jmb.2011.01.015
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • PDZ domains are protein interaction domains that are found in cytoplasmic proteins involved in signaling pathways and subcellular transport. Their roles in the control of cell growth, cell polarity, and cell adhesion in response to cell contact rende ...

    PDZ domains are protein interaction domains that are found in cytoplasmic proteins involved in signaling pathways and subcellular transport. Their roles in the control of cell growth, cell polarity, and cell adhesion in response to cell contact render this family of proteins targets during the development of cancer. Targeting of these network hubs by the oncoprotein E6 of "high-risk" human papillomaviruses (HPVs) serves to effect the efficient disruption of cellular processes. Using NMR, we have solved the three-dimensional solution structure of an extended construct of the second PDZ domain of MAGI-1 (MAGI-1 PDZ1) alone and bound to a peptide derived from the C-terminus of HPV16 E6, and we have characterized the changes in backbone dynamics and hydrogen bonding that occur upon binding. The binding event induces quenching of high-frequency motions in the C-terminal tail of the PDZ domain, which contacts the peptide upstream of the canonical X-[T/S]-X-[L/V] binding motif. Mutations designed in the C-terminal flanking region of the PDZ domain resulted in a significant decrease in binding affinity for E6 peptides. This detailed analysis supports the notion of a global response of the PDZ domain to the binding event, with effects propagated to distal sites, and reveals unexpected roles for the sequences flanking the canonical PDZ domain boundaries.


    Organizational Affiliation

    Equipe Oncoprotéines, Ecole Supérieure de Biotechnologie de Strasbourg, Boulevard Sébastien Brant, BP 10413, 67412 Illkirch Cedex, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Membrane-associated guanylate kinase, WW and PDZ domain-containing protein 1
A
129Homo sapiensMutation(s): 0 
Gene Names: MAGI1 (AIP3, BAIAP1, BAP1, TNRC19)
Find proteins for Q96QZ7 (Homo sapiens)
Go to Gene View: MAGI1
Go to UniProtKB:  Q96QZ7
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Protein E6
B
11Human papillomavirus type 16Mutation(s): 0 
Gene Names: E6
Find proteins for P03126 (Human papillomavirus type 16)
Go to UniProtKB:  P03126
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 64 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2KPL Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance