Auxiliary subunits of the CKAMP family differentially modulate AMPA receptor properties

AMPA receptor (AMPAR) function is modulated by auxiliary subunits. Here, we report on three AMPAR interacting proteins—namely CKAMP39, CKAMP52 and CKAMP59—that, together with the previously characterized CKAMP44, constitute a novel family of auxiliary subunits distinct from other families of AMPAR i...

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Main Authors: Paul Farrow, Konstantin Khodosevich, Yechiam Sapir, Anton Schulmann, Muhammad Aslam, Yael Stern-Bach, Hannah Monyer, Jakob von Engelhardt
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2015-12-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/09693
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author Paul Farrow
Konstantin Khodosevich
Yechiam Sapir
Anton Schulmann
Muhammad Aslam
Yael Stern-Bach
Hannah Monyer
Jakob von Engelhardt
author_facet Paul Farrow
Konstantin Khodosevich
Yechiam Sapir
Anton Schulmann
Muhammad Aslam
Yael Stern-Bach
Hannah Monyer
Jakob von Engelhardt
author_sort Paul Farrow
collection DOAJ
description AMPA receptor (AMPAR) function is modulated by auxiliary subunits. Here, we report on three AMPAR interacting proteins—namely CKAMP39, CKAMP52 and CKAMP59—that, together with the previously characterized CKAMP44, constitute a novel family of auxiliary subunits distinct from other families of AMPAR interacting proteins. The new members of the CKAMP family display distinct regional and developmental expression profiles in the mouse brain. Notably, despite their structural similarities they exert diverse modulation on AMPAR gating by influencing deactivation, desensitization and recovery from desensitization, as well as glutamate and cyclothiazide potency to AMPARs. This study indicates that AMPAR function is very precisely controlled by the cell-type specific expression of the CKAMP family members.
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spelling doaj.art-ee89746760c54c8a91168145a329d5152022-12-22T03:33:25ZengeLife Sciences Publications LtdeLife2050-084X2015-12-01410.7554/eLife.09693Auxiliary subunits of the CKAMP family differentially modulate AMPA receptor propertiesPaul Farrow0Konstantin Khodosevich1Yechiam Sapir2Anton Schulmann3Muhammad Aslam4Yael Stern-Bach5Hannah Monyer6Jakob von Engelhardt7https://orcid.org/0000-0003-3861-3294Synaptic Signalling and Neurodegeneration, German Cancer Research Center, Heidelberg, Germany; Synaptic Signalling and Neurodegeneration, German Center for Neurodegenerative Diseases, Bonn, GermanyDepartment of Clinical Neurobiology, Medical Faculty of Heidelberg University, Heidelberg, Germany; German Cancer Research Center, Heidelberg, GermanyDepartment of Biochemistry and Molecular Biology, Institute for Medical Research – Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, IsraelDepartment of Clinical Neurobiology, Medical Faculty of Heidelberg University, Heidelberg, Germany; German Cancer Research Center, Heidelberg, GermanySynaptic Signalling and Neurodegeneration, German Cancer Research Center, Heidelberg, Germany; Synaptic Signalling and Neurodegeneration, German Center for Neurodegenerative Diseases, Bonn, GermanyDepartment of Biochemistry and Molecular Biology, Institute for Medical Research – Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem, IsraelDepartment of Clinical Neurobiology, Medical Faculty of Heidelberg University, Heidelberg, GermanySynaptic Signalling and Neurodegeneration, German Cancer Research Center, Heidelberg, Germany; Synaptic Signalling and Neurodegeneration, German Center for Neurodegenerative Diseases, Bonn, GermanyAMPA receptor (AMPAR) function is modulated by auxiliary subunits. Here, we report on three AMPAR interacting proteins—namely CKAMP39, CKAMP52 and CKAMP59—that, together with the previously characterized CKAMP44, constitute a novel family of auxiliary subunits distinct from other families of AMPAR interacting proteins. The new members of the CKAMP family display distinct regional and developmental expression profiles in the mouse brain. Notably, despite their structural similarities they exert diverse modulation on AMPAR gating by influencing deactivation, desensitization and recovery from desensitization, as well as glutamate and cyclothiazide potency to AMPARs. This study indicates that AMPAR function is very precisely controlled by the cell-type specific expression of the CKAMP family members.https://elifesciences.org/articles/09693AMPA receptorsauxiliary subunitsdesensitizationdeactivation
spellingShingle Paul Farrow
Konstantin Khodosevich
Yechiam Sapir
Anton Schulmann
Muhammad Aslam
Yael Stern-Bach
Hannah Monyer
Jakob von Engelhardt
Auxiliary subunits of the CKAMP family differentially modulate AMPA receptor properties
eLife
AMPA receptors
auxiliary subunits
desensitization
deactivation
title Auxiliary subunits of the CKAMP family differentially modulate AMPA receptor properties
title_full Auxiliary subunits of the CKAMP family differentially modulate AMPA receptor properties
title_fullStr Auxiliary subunits of the CKAMP family differentially modulate AMPA receptor properties
title_full_unstemmed Auxiliary subunits of the CKAMP family differentially modulate AMPA receptor properties
title_short Auxiliary subunits of the CKAMP family differentially modulate AMPA receptor properties
title_sort auxiliary subunits of the ckamp family differentially modulate ampa receptor properties
topic AMPA receptors
auxiliary subunits
desensitization
deactivation
url https://elifesciences.org/articles/09693
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