Organization and dynamics of PDZ-domain-related supramodules in the postsynaptic density

Nat Rev Neurosci. 2009 Feb;10(2):87-99. doi: 10.1038/nrn2540.


As the major components of the postsynaptic density of excitatory neuronal synapses, PDZ-domain-containing scaffold proteins regulate the clustering of surface glutamate receptors, organize synaptic signalling complexes, participate in the dynamic trafficking of receptors and ion channels, and coordinate cytoskeletal dynamics. These scaffold proteins often contain multiple PDZ domains, with or without other protein-binding modules, and they usually lack intrinsic enzymatic activities. Recent biochemical and structural studies have shown that tandemly arranged PDZ domains often serve as structural and functional supramodules that could regulate the organization and dynamics of synaptic protein complexes, thus contributing to the broad range of neuronal activity.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Humans
  • Models, Neurological
  • Nerve Tissue Proteins / chemistry*
  • Nerve Tissue Proteins / physiology*
  • Neurons / metabolism
  • PDZ Domains / physiology*
  • Protein Binding / physiology
  • Protein Transport / physiology
  • Synapses / metabolism*


  • Nerve Tissue Proteins
  • postsynaptic density proteins