The Shank3 interaction partner ProSAPiP1 regulates postsynaptic SPAR levels and the maturation of dendritic spines in hippocampal neurons

The postsynaptic density or PSD is a submembranous compartment containing a wide array of proteins that contribute to both morphology and function of excitatory glutamatergic synapses. In this study, we have analyzed functional aspects of the Fezzin ProSAPiP1, an interaction partner of the well-know...

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Main Authors: Dominik eReim, Tobias eWeis, Sonja eHalbedl, Andreas eGrabrucker, Michael J Schmeisser, Tobias Maria Boeckers
Format: Article
Language:English
Published: Frontiers Media S.A. 2016-05-01
Series:Frontiers in Synaptic Neuroscience
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fnsyn.2016.00013/full
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author Dominik eReim
Tobias eWeis
Sonja eHalbedl
Andreas eGrabrucker
Michael J Schmeisser
Tobias Maria Boeckers
author_facet Dominik eReim
Tobias eWeis
Sonja eHalbedl
Andreas eGrabrucker
Michael J Schmeisser
Tobias Maria Boeckers
author_sort Dominik eReim
collection DOAJ
description The postsynaptic density or PSD is a submembranous compartment containing a wide array of proteins that contribute to both morphology and function of excitatory glutamatergic synapses. In this study, we have analyzed functional aspects of the Fezzin ProSAPiP1, an interaction partner of the well-known PSD proteins Shank3 and SPAR. Using lentiviral-mediated overexpression and knockdown of ProSAPiP1, we found that this protein is dispensable for the formation of both pre- and postsynaptic specializations per se. We further show that ProSAPiP1 regulates SPAR levels at the PSD and the maturation of dendritic spines. In line with previous findings on the ProSAPiP1 homologue PSD-Zip70, we conclude that Fezzins essentially contribute to the maturation of excitatory spine synapses.
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spelling doaj.art-d3120d84e3114922b3d19764019542e72022-12-21T17:56:33ZengFrontiers Media S.A.Frontiers in Synaptic Neuroscience1663-35632016-05-01810.3389/fnsyn.2016.00013187952The Shank3 interaction partner ProSAPiP1 regulates postsynaptic SPAR levels and the maturation of dendritic spines in hippocampal neuronsDominik eReim0Tobias eWeis1Sonja eHalbedl2Andreas eGrabrucker3Michael J Schmeisser4Tobias Maria Boeckers5University of UlmUniversity of UlmUniversity of UlmUniversity of UlmUniversity of UlmUniversity of UlmThe postsynaptic density or PSD is a submembranous compartment containing a wide array of proteins that contribute to both morphology and function of excitatory glutamatergic synapses. In this study, we have analyzed functional aspects of the Fezzin ProSAPiP1, an interaction partner of the well-known PSD proteins Shank3 and SPAR. Using lentiviral-mediated overexpression and knockdown of ProSAPiP1, we found that this protein is dispensable for the formation of both pre- and postsynaptic specializations per se. We further show that ProSAPiP1 regulates SPAR levels at the PSD and the maturation of dendritic spines. In line with previous findings on the ProSAPiP1 homologue PSD-Zip70, we conclude that Fezzins essentially contribute to the maturation of excitatory spine synapses.http://journal.frontiersin.org/Journal/10.3389/fnsyn.2016.00013/fullsynapseShank3sparLZTS1LAPSER1LZTS2
spellingShingle Dominik eReim
Tobias eWeis
Sonja eHalbedl
Andreas eGrabrucker
Michael J Schmeisser
Tobias Maria Boeckers
The Shank3 interaction partner ProSAPiP1 regulates postsynaptic SPAR levels and the maturation of dendritic spines in hippocampal neurons
Frontiers in Synaptic Neuroscience
synapse
Shank3
spar
LZTS1
LAPSER1
LZTS2
title The Shank3 interaction partner ProSAPiP1 regulates postsynaptic SPAR levels and the maturation of dendritic spines in hippocampal neurons
title_full The Shank3 interaction partner ProSAPiP1 regulates postsynaptic SPAR levels and the maturation of dendritic spines in hippocampal neurons
title_fullStr The Shank3 interaction partner ProSAPiP1 regulates postsynaptic SPAR levels and the maturation of dendritic spines in hippocampal neurons
title_full_unstemmed The Shank3 interaction partner ProSAPiP1 regulates postsynaptic SPAR levels and the maturation of dendritic spines in hippocampal neurons
title_short The Shank3 interaction partner ProSAPiP1 regulates postsynaptic SPAR levels and the maturation of dendritic spines in hippocampal neurons
title_sort shank3 interaction partner prosapip1 regulates postsynaptic spar levels and the maturation of dendritic spines in hippocampal neurons
topic synapse
Shank3
spar
LZTS1
LAPSER1
LZTS2
url http://journal.frontiersin.org/Journal/10.3389/fnsyn.2016.00013/full
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