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Related Experiment Video

Updated: May 24, 2026

Preparation of Synaptic Plasma Membrane and Postsynaptic Density Proteins Using a Discontinuous Sucrose Gradient
08:06

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Published on: September 3, 2014

Scaffold proteins at the postsynaptic density.

Chiara Verpelli1, Michael J Schmeisser, Carlo Sala

  • 1CNR Institute of Neuroscience, Department of Pharmacology, University of Milan and Neuromuscular Diseases and Neuroimmunology, Neurological Institute Foundation Carlo Besta, Via Vanvitelli 32, 20129 Milan, Italy.

Advances in Experimental Medicine and Biology
|February 22, 2012
PubMed
Summary

Postsynaptic density (PSD) scaffold proteins are crucial for neuronal synapses, organizing receptors and signaling pathways. Disruptions in these essential proteins are linked to severe neuropsychiatric disorders.

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Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins
09:07

Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins

Published on: August 15, 2017

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Cell Biology

Background:

  • Scaffold proteins are vital components of the postsynaptic density (PSD), a critical structure in neuronal synapses.
  • They are involved in trafficking, anchoring, and clustering glutamate receptors and adhesion molecules.
  • Scaffold proteins link receptors to downstream signaling pathways and regulate cytoskeletal dynamics.

Purpose of the Study:

  • To review the latest findings on the structure and function of major PSD scaffold proteins.
  • To highlight the importance of scaffold proteins in PSD architecture and synaptic physiology.

Main Methods:

  • Literature review of recent research on PSD scaffold proteins.
  • Analysis of structural and functional data related to these proteins.

Main Results:

  • PSD scaffold proteins lack intrinsic enzymatic activity but form extensive protein networks through modular domains.
  • Their organization is essential for PSD architecture and synaptic function.

Conclusions:

  • Scaffold proteins are central to PSD structure and neuronal synapse physiology.
  • Deletions or mutations in human scaffold protein genes are associated with severe neuropsychiatric disorders such as autism, mental retardation, and schizophrenia.