2JO9

Mouse Itch 3rd WW domain complex with the Epstein-Barr virus latent membrane protein 2A derived peptide EEPPPPYED


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

NMR Structural Studies of the ItchWW3 Domain Reveal that Phosphorylation at T30 Inhibits the Interaction with PPxY-Containing Ligands

Morales, B.Ramirez-Espain, X.Shaw, A.Z.Martin-Malpartida, P.Yraola, F.Sanchez-Tillo, E.Farrera, C.Celada, A.Royo, M.Macias, M.J.

(2007) Structure 15: 473-483

  • DOI: 10.1016/j.str.2007.03.005
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In this work, we study the role of phosphorylation as a regulatory mechanism for the interaction between the E3 ubiquitin ligase ItchWW3 domain and two PPxY motifs of one of its targets, the Epstein-Barr virus latent membrane protein 2A. Whereas liga ...

    In this work, we study the role of phosphorylation as a regulatory mechanism for the interaction between the E3 ubiquitin ligase ItchWW3 domain and two PPxY motifs of one of its targets, the Epstein-Barr virus latent membrane protein 2A. Whereas ligand phosphorylation only diminishes binding, domain phosphorylation at residue T30 abrogates it. We show that two ItchWW domains can be phosphorylated at this position, using CK2 and PKA kinases and/or with stimulated T lymphocyte lysates. To better understand the regulation process, we determined the NMR structures of the ItchWW3-PPxY complex and of the phosphoT30-ItchWW3 variant. The peptide binds the domain using both XP and tyrosine grooves. A hydrogen bond from T30 to the ligand is also detected. This hydrogen-bond formation is precluded in the variant, explaining the inhibition upon phosphorylation. Our results suggest that phosphorylation at position 30 in ItchWW domains can be a mechanism to inhibit target recognition in vivo.


    Organizational Affiliation

    Institute of Research in Biomedicine, Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010 Barcelona, Spain.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Itchy E3 ubiquitin protein ligase
A
37Mus musculusMutation(s): 0 
Gene Names: Itch
EC: 2.3.2.26
Find proteins for Q8C863 (Mus musculus)
Go to UniProtKB:  Q8C863
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Latent membrane protein 2
B
9Epstein-Barr virus (strain B95-8)Mutation(s): 0 
Gene Names: LMP2
Find proteins for P13285 (Epstein-Barr virus (strain B95-8))
Go to UniProtKB:  P13285
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2JO9 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-04-17
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance