1OZI

The alternatively spliced PDZ2 domain of PTP-BL


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 30 
  • 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

A Closed Binding Pocket and Global Destabilization Modify the Binding Properties of an Alternatively Spliced Form of the Second PDZ Domain of PTP-BL.

Walma, T.Aelen, J.Nabuurs, S.B.Oostendorp, M.van den Berk, L.Hendriks, W.Vuister, G.W.

(2004) Structure 12: 11-20

  • DOI: 10.1016/j.str.2003.11.023
  • Primary Citation of Related Structures:  
    1OZI

  • PubMed Abstract: 
  • PTP-BL is a large phosphatase that is implicated in cellular processes as diverse as cytokinesis, actin-cytoskeletal rearrangement, and apoptosis. Five PDZ domains mediate its cellular role by binding to the C termini of target proteins, forming multiprotein complexes ...

    PTP-BL is a large phosphatase that is implicated in cellular processes as diverse as cytokinesis, actin-cytoskeletal rearrangement, and apoptosis. Five PDZ domains mediate its cellular role by binding to the C termini of target proteins, forming multiprotein complexes. The second PDZ domain (PDZ2) binds to the C termini of the tumor suppressor protein APC and the LIM domain-containing protein RIL; however, in one splice variant, PDZ2as, a 5 residue insertion abrogates this binding. The insert causes distinct structural and dynamical changes in the alternatively spliced PDZ2: enlarging the L1 loop between beta2 and beta3, both lengthening and changing the orientation of the alpha2 helix, giving the base of the binding pocket less flexibility to accommodate ligands, and destabilizing the entire domain. These changes render the binding pocket incapable of binding C termini, possibly having implications in the functional role of PTP-BL.


    Organizational Affiliation

    Department of Biophysical Chemistry, NSRIM Center, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
protein tyrosine phosphatase A99Mus musculusMutation(s): 0 
Gene Names: PTP-BLPtpn13Ptp14
EC: 3.1.3.48
Find proteins for Q64512 (Mus musculus)
Explore Q64512 
Go to UniProtKB:  Q64512
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 30 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 1OZI Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-01-27
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance