Comparative analysis of palmitoylation sites of serotonin (5‐HT) receptors in vertebrates

Abstract Background In the vertebrate central nervous system as well as in the periphery, serotonin, also known as 5‐hydroxytriptamine (5‐HT), function as a neurotransmitter, a hormone or a mitogen. 5‐HT receptors are composed of 7 family 5‐HT1‐7 receptors, comprising of 14 structurally and pharmaco...

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Main Authors: Toshie Kaizuka, Takashi Hayashi
Format: Article
Language:English
Published: Wiley 2018-06-01
Series:Neuropsychopharmacology Reports
Subjects:
Online Access:https://doi.org/10.1002/npr2.12011
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author Toshie Kaizuka
Takashi Hayashi
author_facet Toshie Kaizuka
Takashi Hayashi
author_sort Toshie Kaizuka
collection DOAJ
description Abstract Background In the vertebrate central nervous system as well as in the periphery, serotonin, also known as 5‐hydroxytriptamine (5‐HT), function as a neurotransmitter, a hormone or a mitogen. 5‐HT receptors are composed of 7 family 5‐HT1‐7 receptors, comprising of 14 structurally and pharmacologically distinct 5‐HT receptor subtypes. Previous experimental studies showed that mouse 5‐HT1A, 5‐HT4 and 5‐HT7 receptors are regulated by post‐translational protein palmitoylation, the reversible attachment of the lipid palmitate to intracellular cysteine residues. Here, we further focused on conservation of these putative palmitoylation sites found in vertebrate 5‐HT receptor orthologs. Methods and Results Analysis of sequence databases provides evidence to suggest that palmitoylation sites of these 5‐HT receptors have been extremely conserved in the vertebrate lineages from jawless fishes to human, in spite of the divergence of 5‐HT1A, 5‐HT4 or 5‐HT7 receptors full‐length amino acid sequences during molecular evolution. Conclusion Our findings mean that dynamic regulation of 5‐HT receptors made possible by reversible post‐translational protein palmitoylation may be critical for refined functions of the vertebrate serotonergic systems.
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spelling doaj.art-40eac666e2274df9b67bb76028252cd92022-12-22T02:56:57ZengWileyNeuropsychopharmacology Reports2574-173X2018-06-01382758510.1002/npr2.12011Comparative analysis of palmitoylation sites of serotonin (5‐HT) receptors in vertebratesToshie Kaizuka0Takashi Hayashi1Section of Cellular Biochemistry Department of Biochemistry and Cellular Biology National Institute of Neuroscience National Center of Neurology and Psychiatry (NCNP) Tokyo JapanSection of Cellular Biochemistry Department of Biochemistry and Cellular Biology National Institute of Neuroscience National Center of Neurology and Psychiatry (NCNP) Tokyo JapanAbstract Background In the vertebrate central nervous system as well as in the periphery, serotonin, also known as 5‐hydroxytriptamine (5‐HT), function as a neurotransmitter, a hormone or a mitogen. 5‐HT receptors are composed of 7 family 5‐HT1‐7 receptors, comprising of 14 structurally and pharmacologically distinct 5‐HT receptor subtypes. Previous experimental studies showed that mouse 5‐HT1A, 5‐HT4 and 5‐HT7 receptors are regulated by post‐translational protein palmitoylation, the reversible attachment of the lipid palmitate to intracellular cysteine residues. Here, we further focused on conservation of these putative palmitoylation sites found in vertebrate 5‐HT receptor orthologs. Methods and Results Analysis of sequence databases provides evidence to suggest that palmitoylation sites of these 5‐HT receptors have been extremely conserved in the vertebrate lineages from jawless fishes to human, in spite of the divergence of 5‐HT1A, 5‐HT4 or 5‐HT7 receptors full‐length amino acid sequences during molecular evolution. Conclusion Our findings mean that dynamic regulation of 5‐HT receptors made possible by reversible post‐translational protein palmitoylation may be critical for refined functions of the vertebrate serotonergic systems.https://doi.org/10.1002/npr2.120115‐hydroxytryptamineorthologspost‐translational protein palmitoylationreceptorserotoninvertebrate
spellingShingle Toshie Kaizuka
Takashi Hayashi
Comparative analysis of palmitoylation sites of serotonin (5‐HT) receptors in vertebrates
Neuropsychopharmacology Reports
5‐hydroxytryptamine
orthologs
post‐translational protein palmitoylation
receptor
serotonin
vertebrate
title Comparative analysis of palmitoylation sites of serotonin (5‐HT) receptors in vertebrates
title_full Comparative analysis of palmitoylation sites of serotonin (5‐HT) receptors in vertebrates
title_fullStr Comparative analysis of palmitoylation sites of serotonin (5‐HT) receptors in vertebrates
title_full_unstemmed Comparative analysis of palmitoylation sites of serotonin (5‐HT) receptors in vertebrates
title_short Comparative analysis of palmitoylation sites of serotonin (5‐HT) receptors in vertebrates
title_sort comparative analysis of palmitoylation sites of serotonin 5 ht receptors in vertebrates
topic 5‐hydroxytryptamine
orthologs
post‐translational protein palmitoylation
receptor
serotonin
vertebrate
url https://doi.org/10.1002/npr2.12011
work_keys_str_mv AT toshiekaizuka comparativeanalysisofpalmitoylationsitesofserotonin5htreceptorsinvertebrates
AT takashihayashi comparativeanalysisofpalmitoylationsitesofserotonin5htreceptorsinvertebrates