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Formation and Stability of Synaptic Receptor Domains

Author(s)
Haselwandter, Christoph A.; Calamai, Martino; Kardar, Mehran; Triller, Antoine; Azeredo da Silveira, Rava
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Abstract
Neurotransmitter receptor molecules, concentrated in postsynaptic domains along with scaffold and a number of other molecules, are key regulators of signal transmission across synapses. Combining experiment and theory, we develop a quantitative description of synaptic receptor domains in terms of a reaction-diffusion model. We show that interactions between only receptors and scaffolds, together with the rapid diffusion of receptors on the cell membrane, are sufficient for the formation and stable characteristic size of synaptic receptor domains. Our work reconciles long-term stability of synaptic receptor domains with rapid turnover and diffusion of individual receptors, and suggests novel mechanisms for a form of short-term, postsynaptic plasticity.
Date issued
2011-06
URI
http://hdl.handle.net/1721.1/65897
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Haselwandter, Christoph et al. “Formation and Stability of Synaptic Receptor Domains.” Physical Review Letters 106 (2011). © 2011 American Physical Society.
Version: Final published version
ISSN
0031-9007

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