Evolving questions and paradigm shifts in endoplasmic-reticulum-associated degradation (ERAD)

ER‐associated degradation (ERAD) is a component of the protein quality control system, ensuring that aberrant polypeptides cannot transit through the secretory pathway. This is accomplished by a complex sequence of events in which unwanted proteins are selected in the ER and exported to the cytosol...

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Veröffentlicht in:BioEssays 2003-09, Vol.25 (9), p.868-877
Hauptverfasser: McCracken, Ardythe A., Brodsky, Jeffrey L.
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Brodsky, Jeffrey L.
description ER‐associated degradation (ERAD) is a component of the protein quality control system, ensuring that aberrant polypeptides cannot transit through the secretory pathway. This is accomplished by a complex sequence of events in which unwanted proteins are selected in the ER and exported to the cytosol for degradation by the proteasome. Given that protein quality control can be essential for cell survival, it is not surprising that ERAD is linked to numerous disease states. Here we review the molecular mechanisms of ERAD, its role in metabolic regulation and biomedical implications, and the unanswered questions regarding this process. BioEssays 25:868–877, 2003. © 2003 Wiley Periodicals, Inc.
doi_str_mv 10.1002/bies.10320
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subjects Animals
Cell Membrane - metabolism
Cell Survival
Cysteine Endopeptidases - metabolism
Cytosol - metabolism
Endoplasmic Reticulum - metabolism
Fungal Proteins - metabolism
Glycosylation
Humans
Models, Biological
Multienzyme Complexes - metabolism
Mutation
Proteasome Endopeptidase Complex
Protein Transport
title Evolving questions and paradigm shifts in endoplasmic-reticulum-associated degradation (ERAD)
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