Activity-dependent post-translational regulation of palmitoylating and depalmitoylating enzymes in the hippocampus.
Chemical long-term potentiation
Palmitoylation
Post-translational modification
Synapse activity
ZDHHC enzymes
Journal
Journal of cell science
ISSN: 1477-9137
Titre abrégé: J Cell Sci
Pays: England
ID NLM: 0052457
Informations de publication
Date de publication:
01 04 2023
01 04 2023
Historique:
received:
13
09
2022
accepted:
20
01
2023
medline:
13
4
2023
entrez:
11
4
2023
pubmed:
12
4
2023
Statut:
ppublish
Résumé
Activity-induced changes in protein palmitoylation can regulate the plasticity of synaptic connections, critically impacting learning and memory. Palmitoylation is a reversible post-translational modification regulated by both palmitoyl-acyl transferases that mediate palmitoylation and palmitoyl thioesterases that depalmitoylate proteins. However, it is not clear how fluctuations in synaptic activity can mediate the dynamic palmitoylation of neuronal proteins. Using primary hippocampal cultures, we demonstrate that synaptic activity does not impact the transcription of palmitoylating and depalmitoylating enzymes, changes in thioesterase activity, or post-translational modification of the depalmitoylating enzymes of the ABHD17 family and APT2 (also known as LYPLA2). In contrast, synaptic activity does mediate post-translational modification of the palmitoylating enzymes ZDHHC2, ZDHHC5 and ZDHHC9 (but not ZDHHC8) to influence protein-protein interactions, enzyme stability and enzyme function. Post-translational modifications of the ZDHHC enzymes were also observed in the hippocampus following fear conditioning. Taken together, our findings demonstrate that signaling events activated by synaptic activity largely impact activity of the ZDHHC family of palmitoyl-acyl transferases with less influence on the activity of palmitoyl thioesterases.
Identifiants
pubmed: 37039765
pii: 306243
doi: 10.1242/jcs.260629
pmc: PMC10113885
pii:
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : NIH HHS
ID : R35 GM119840
Pays : United States
Informations de copyright
© 2023. Published by The Company of Biologists Ltd.
Déclaration de conflit d'intérêts
Competing interests The authors declare no competing or financial interests.
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