Cited by 264Neuroscience and Neuropharmacology ResearchProtein Kinase Regulation and GTPase SignalingCellular transport and secretion

Local palmitoylation cycles define activity-regulated postsynaptic subdomains

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Fukata, Yuko, Dimitrov, Ariane, Boncompain, Gaelle, Vielemeyer, Ole, Perez, Franck, Fukata, Masaki·2013·Journal of Cell Biology

Abstract

Distinct PSD-95 clusters are primary landmarks of postsynaptic densities (PSDs), which are specialized membrane regions for synapses. However, the mechanism that defines the locations of PSD-95 clusters and whether or how they are reorganized inside individual dendritic spines remains controversial. Because palmitoylation regulates PSD-95 membrane targeting, we combined a conformation-specific recombinant antibody against palmitoylated PSD-95 with live-cell super-resolution imaging and discovered subsynaptic nanodomains composed of palmitoylated PSD-95 that serve as elementary units of the PSD. PSD-95 in nanodomains underwent continuous de/repalmitoylation cycles driven by local palmitoylating activity, ensuring the maintenance of compartmentalized PSD-95 clusters within individual spines. Plasma membrane targeting of DHHC2 palmitoyltransferase rapidly recruited PSD-95 to the plasma membrane and proved essential for postsynaptic nanodomain formation. Furthermore, changes in synaptic activity rapidly reorganized PSD-95 nano-architecture through plasma membrane-inserted DHHC2. Thus, the first genetically encoded antibody sensitive to palmitoylation reveals an instructive role of local palmitoylation machinery in creating activity-responsive PSD-95 nanodomains, contributing to the PSD (re)organization.

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Crossref · 10.1083/jcb.201302071

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  • The average estimated diameter of RIM1/2 nanoclusters is very close to the reported size of PSD-95 and AMPA receptor nanoclusters.

    “The average estimated diameter of ~80 nm for RIM1/2 NCs was very close to the reported size of PSD-95 and AMPA receptor (AMPAR) NCs4–6.”

    From A trans-synaptic nanocolumn aligns neurotransmitter release to receptors (2016) · cites this paper as [6]

    The Results section (page unavailable) reports a mean diameter of about 200 nm for palmitoylated PSD-95 nanodomains, not a size very close to the citing sentence’s ~80 nm. It reports that AMPAR clusters associate with those nanodomains but gives no AMPAR-cluster diameter. (LLM, conf=0.86)

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  • Presynaptic RIM nanoclusters closely align with concentrated postsynaptic receptors and scaffolding proteins.

    “These presynaptic RIM nanoclusters closely aligned with concentrated postsynaptic receptors and scaffolding proteins4–6, suggesting a transsynaptic molecular “nanocolumn.””

    From A trans-synaptic nanocolumn aligns neurotransmitter release to receptors (2016) · cites this paper as [6]

    The Results section on subsynaptic nanodomains (Fig. 4F–H; page unavailable) shows postsynaptic PSD-95 nanodomains associated with AMPA receptors and apposed to presynaptic vGlut1 labeling. It does not identify presynaptic RIM nanoclusters or show that those clusters closely align with the postsynaptic proteins. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The alignment of pre- and postsynaptic nanoscale subdomains suggests that even small synapses may be composed of dynamic functional modules.

    “The alignment of pre and postsynaptic nanoscale subdomains4–6 suggests that even small synapses may be composed of dynamic functional modules28,29.”

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Authors
Fukata, Y., Dimitrov, A., Boncompain, G., Vielemeyer, O., Perez, F., & Fukata, M.
Affiliations
  • National Institute for Physiological Sciences (JP)
  • Centre National de la Recherche Scientifique (FR)
  • Centre National de la Recherche Scientifique, Unité Mixte de Recherche 144 2 and 3
Corresponding author
  • Perez, Franck
  • Fukata, Masaki
Venue
Journal of Cell Biology
Published
2013-07-08
Volume
202
Issue
1
Pages
145-161
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2168234829
Cited by
262
References
58
Citations by year
2026: 8 · 2025: 13 · 2024: 23 · 2023: 12 · 2022: 20 · 2021: 28 · 2020: 24 · 2019: 21 · 2018: 23 · 2017: 27 · 2016: 20 · 2015: 20 · 2014: 17 · 2013: 6
FWCI
10.31
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Cell Biology (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • Agence Nationale de la Recherche (ANR-09-BLAN-0290)
  • Japan Society for the Promotion of Science
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
Keywords
palmitoylation, PSD-95, postsynaptic density, dendritic spines, plasma membrane targeting, synaptic organization
MeSH terms
Disks Large Homolog 4 Protein, Animals, Chlorocebus aethiops, Fluorescent Dyes, Hippocampus, Humans, Membrane Proteins, Synaptic Transmission, Neuronal Plasticity, Neurons, Palmitates, Sensitivity and Specificity, Structure-Activity Relationship, Transfection, COS Cells, Dendritic Spines, Green Fluorescent Proteins, Mice, Rats, Guanylate Kinases, Lipoylation, HEK293 Cells, Post-Synaptic Density

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