Endoplasmic reticulum-associated degradation of glycoproteins in plants

In all eukaryotes the endoplasmic reticulum (ER) has a central role in protein folding and maturation of secretory and membrane proteins. Upon translocation into the ER polypeptides are immediately subjected to folding and modifications involving the formation of disulfide bridges, assembly of subun...

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Main Authors: Silvia eHüttner, Richard eStrasser
Format: Article
Language:English
Published: Frontiers Media S.A. 2012-04-01
Series:Frontiers in Plant Science
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fpls.2012.00067/full
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author Silvia eHüttner
Richard eStrasser
author_facet Silvia eHüttner
Richard eStrasser
author_sort Silvia eHüttner
collection DOAJ
description In all eukaryotes the endoplasmic reticulum (ER) has a central role in protein folding and maturation of secretory and membrane proteins. Upon translocation into the ER polypeptides are immediately subjected to folding and modifications involving the formation of disulfide bridges, assembly of subunits to multi-protein complexes and glycosylation. During these processes incompletely folded, terminally misfolded and unassembled proteins can accumulate which endanger the cellular homeostasis and subsequently the survival of cells and tissues. Consequently, organisms have developed a quality control system to cope with this problem and remove the unwanted protein load from the ER by a process collectively referred to as endoplasmic reticulum-associated degradation (ERAD) pathway. Recent studies in Arabidopsis have identified plant ERAD components involved in the degradation of aberrant proteins and evidence was provided for a specific role in abiotic stress tolerance. In this short review we discuss our current knowledge about this important cellular pathway.
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spelling doaj.art-224d4907796342938058f29910ece94c2022-12-21T21:59:34ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2012-04-01310.3389/fpls.2012.0006725339Endoplasmic reticulum-associated degradation of glycoproteins in plantsSilvia eHüttner0Richard eStrasser1University of Natural Resources and Life SciencesUniversity of Natural Resources and Life SciencesIn all eukaryotes the endoplasmic reticulum (ER) has a central role in protein folding and maturation of secretory and membrane proteins. Upon translocation into the ER polypeptides are immediately subjected to folding and modifications involving the formation of disulfide bridges, assembly of subunits to multi-protein complexes and glycosylation. During these processes incompletely folded, terminally misfolded and unassembled proteins can accumulate which endanger the cellular homeostasis and subsequently the survival of cells and tissues. Consequently, organisms have developed a quality control system to cope with this problem and remove the unwanted protein load from the ER by a process collectively referred to as endoplasmic reticulum-associated degradation (ERAD) pathway. Recent studies in Arabidopsis have identified plant ERAD components involved in the degradation of aberrant proteins and evidence was provided for a specific role in abiotic stress tolerance. In this short review we discuss our current knowledge about this important cellular pathway.http://journal.frontiersin.org/Journal/10.3389/fpls.2012.00067/fullEndoplasmic ReticulumProtein degradationprotein glycosylationprotein quality controlubiquitin-proteasome
spellingShingle Silvia eHüttner
Richard eStrasser
Endoplasmic reticulum-associated degradation of glycoproteins in plants
Frontiers in Plant Science
Endoplasmic Reticulum
Protein degradation
protein glycosylation
protein quality control
ubiquitin-proteasome
title Endoplasmic reticulum-associated degradation of glycoproteins in plants
title_full Endoplasmic reticulum-associated degradation of glycoproteins in plants
title_fullStr Endoplasmic reticulum-associated degradation of glycoproteins in plants
title_full_unstemmed Endoplasmic reticulum-associated degradation of glycoproteins in plants
title_short Endoplasmic reticulum-associated degradation of glycoproteins in plants
title_sort endoplasmic reticulum associated degradation of glycoproteins in plants
topic Endoplasmic Reticulum
Protein degradation
protein glycosylation
protein quality control
ubiquitin-proteasome
url http://journal.frontiersin.org/Journal/10.3389/fpls.2012.00067/full
work_keys_str_mv AT silviaehuttner endoplasmicreticulumassociateddegradationofglycoproteinsinplants
AT richardestrasser endoplasmicreticulumassociateddegradationofglycoproteinsinplants