Regulation of Proteasome Activity by (Post-)transcriptional Mechanisms

Intracellular protein synthesis, folding, and degradation are tightly controlled processes to ensure proper protein homeostasis. The proteasome is responsible for the degradation of the majority of intracellular proteins, which are often targeted for degradation via polyubiquitination. However, the...

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Main Authors: Suzan Kors, Karlijne Geijtenbeek, Eric Reits, Sabine Schipper-Krom
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-07-01
Series:Frontiers in Molecular Biosciences
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmolb.2019.00048/full
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author Suzan Kors
Karlijne Geijtenbeek
Eric Reits
Sabine Schipper-Krom
author_facet Suzan Kors
Karlijne Geijtenbeek
Eric Reits
Sabine Schipper-Krom
author_sort Suzan Kors
collection DOAJ
description Intracellular protein synthesis, folding, and degradation are tightly controlled processes to ensure proper protein homeostasis. The proteasome is responsible for the degradation of the majority of intracellular proteins, which are often targeted for degradation via polyubiquitination. However, the degradation rate of proteins is also affected by the capacity of proteasomes to recognize and degrade these substrate proteins. This capacity is regulated by a variety of proteasome modulations including (1) changes in complex composition, (2) post-translational modifications, and (3) altered transcription of proteasomal subunits and activators. Various diseases are linked to proteasome modulation and altered proteasome function. A better understanding of these modulations may offer new perspectives for therapeutic intervention. Here we present an overview of these three proteasome modulating mechanisms to give better insight into the diversity of proteasomes.
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spelling doaj.art-77913237ee0249d4814cbe12e81158b02022-12-21T18:42:47ZengFrontiers Media S.A.Frontiers in Molecular Biosciences2296-889X2019-07-01610.3389/fmolb.2019.00048452008Regulation of Proteasome Activity by (Post-)transcriptional MechanismsSuzan KorsKarlijne GeijtenbeekEric ReitsSabine Schipper-KromIntracellular protein synthesis, folding, and degradation are tightly controlled processes to ensure proper protein homeostasis. The proteasome is responsible for the degradation of the majority of intracellular proteins, which are often targeted for degradation via polyubiquitination. However, the degradation rate of proteins is also affected by the capacity of proteasomes to recognize and degrade these substrate proteins. This capacity is regulated by a variety of proteasome modulations including (1) changes in complex composition, (2) post-translational modifications, and (3) altered transcription of proteasomal subunits and activators. Various diseases are linked to proteasome modulation and altered proteasome function. A better understanding of these modulations may offer new perspectives for therapeutic intervention. Here we present an overview of these three proteasome modulating mechanisms to give better insight into the diversity of proteasomes.https://www.frontiersin.org/article/10.3389/fmolb.2019.00048/fullproteasomepost translational modifications20S26Sproteasome complexesproteasome activation/inhibition
spellingShingle Suzan Kors
Karlijne Geijtenbeek
Eric Reits
Sabine Schipper-Krom
Regulation of Proteasome Activity by (Post-)transcriptional Mechanisms
Frontiers in Molecular Biosciences
proteasome
post translational modifications
20S
26S
proteasome complexes
proteasome activation/inhibition
title Regulation of Proteasome Activity by (Post-)transcriptional Mechanisms
title_full Regulation of Proteasome Activity by (Post-)transcriptional Mechanisms
title_fullStr Regulation of Proteasome Activity by (Post-)transcriptional Mechanisms
title_full_unstemmed Regulation of Proteasome Activity by (Post-)transcriptional Mechanisms
title_short Regulation of Proteasome Activity by (Post-)transcriptional Mechanisms
title_sort regulation of proteasome activity by post transcriptional mechanisms
topic proteasome
post translational modifications
20S
26S
proteasome complexes
proteasome activation/inhibition
url https://www.frontiersin.org/article/10.3389/fmolb.2019.00048/full
work_keys_str_mv AT suzankors regulationofproteasomeactivitybyposttranscriptionalmechanisms
AT karlijnegeijtenbeek regulationofproteasomeactivitybyposttranscriptionalmechanisms
AT ericreits regulationofproteasomeactivitybyposttranscriptionalmechanisms
AT sabineschipperkrom regulationofproteasomeactivitybyposttranscriptionalmechanisms