Structural Insights into the Inter-domain Chaperoning of Tandem PDZ Domains in Glutamate Receptor Interacting Proteins

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


Tandem PDZ repeats in glutamate receptor-interacting proteins have a novel mode of PDZ domain-mediated target binding

Feng, W.Shi, Y.Li, M.Zhang, M.

(2003) Nat Struct Biol 10: 972-978

  • DOI: https://doi.org/10.1038/nsb992
  • Primary Citation of Related Structures:  
    1P1D, 1P1E

  • PubMed Abstract: 

    The interaction of the glutamate receptor subunits 2 and 3 (GluR2/3) with multi-PDZ domain glutamate receptor-interacting protein (GRIP) is important for the synaptic trafficking and clustering of the receptors. Binding of GluR2/3 to GRIP requires both the fourth and fifth PDZ domains (PDZ4 and PDZ5) to be covalently linked, although only one PDZ domain is directly involved in binding to the receptor tail. To elucidate the molecular basis of this mode of PDZ domain-mediated target recognition, we solved the solution structures of the PDZ45 tandem and the isolated PDZ4 of GRIP. The two PDZ domains form a compact structure with a fixed interdomain orientation. The interdomain packing and the stable folding of both PDZ domains require a short stretch of amino acids N-terminal to PDZ4 and a conserved linker connecting PDZ4 and PDZ5. PDZ4 contains a deformed aB-bB groove that is unlikely to bind to carboxyl peptides. Instead, the domain stabilizes the structure of PDZ5.

  • Organizational Affiliation

    Department of Biochemistry, Molecular Neuroscience Center, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glutamate receptor interacting protein196Rattus norvegicusMutation(s): 0 
Find proteins for P97879 (Rattus norvegicus)
Explore P97879 
Go to UniProtKB:  P97879
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP97879
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-11-11
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-23
    Changes: Database references, Derived calculations
  • Version 1.4: 2024-05-29
    Changes: Data collection