Clathrin-mediated endocytosis at synapses

Traffic. 2007 Sep;8(9):1129-36. doi: 10.1111/j.1600-0854.2007.00595.x. Epub 2007 Jun 5.


Neurons are communication specialists that convert electrical into chemical signals at specialized cell-cell junctions termed synapses. Arrival of an action potential triggers calcium-regulated exocytosis of neurotransmitter (NT) from small synaptic vesicles (SVs), which then diffuses across the synaptic cleft and binds to postsynaptic receptors to elicit specific changes within the postsynaptic cell. Endocytosis of pre- and postsynaptic membrane proteins including SV components and postsynaptic NT receptors is essential for the proper functioning of the synapse. During the past several years, we have witnessed enormous progress in our understanding of the mechanics of clathrin-mediated endocytosis (CME) and its role in regulating exo-endocytic vesicle cycling at synapses. Here we summarize the molecular machinery used for recognition of synaptic membrane protein cargo and its clathrin-dependent internalization, and describe the inventory of tools that can be used to monitor vesicle cycling at synapses or to inhibit CME in a stage-specific manner.

Publication types

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

MeSH terms

  • Adaptor Proteins, Vesicular Transport / physiology
  • Animals
  • Clathrin-Coated Vesicles / metabolism*
  • Endocytosis / physiology*
  • Humans
  • Models, Biological
  • Receptors, Neurotransmitter / physiology
  • Synapses / physiology*
  • Synaptic Membranes / metabolism
  • Synaptic Vesicles / metabolism


  • Adaptor Proteins, Vesicular Transport
  • Receptors, Neurotransmitter