Balancing oxidative protein folding: the influences of reducing pathways on disulfide bond formation.
Identifieur interne : 000648 ( Main/Corpus ); précédent : 000647; suivant : 000649Balancing oxidative protein folding: the influences of reducing pathways on disulfide bond formation.
Auteurs : Kerstin Kojer ; Jan RiemerSource :
- Biochimica et biophysica acta [ 0006-3002 ] ; 2014.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Disulfides.
- metabolism : Endoplasmic Reticulum.
- Animals, Humans, Oxidation-Reduction, Oxidative Stress, Protein Folding, Signal Transduction.
Abstract
Oxidative protein folding is confined to few compartments, including the endoplasmic reticulum, the mitochondrial intermembrane space and the bacterial periplasm. Conversely, in compartments in which proteins are translated such as the cytosol, the mitochondrial matrix and the chloroplast stroma proteins are kept reduced by the thioredoxin and glutaredoxin systems that functionally overlap. The highly reducing NADPH pool thereby serves as electron donor that enables glutathione reductase and thioredoxin reductase to keep glutathione pools and thioredoxins in their reduced redox state, respectively. Notably, also compartments containing oxidizing machineries are linked to these reducing pathways. Reducing pathways aid in proofreading of disulfide bond formation by isomerization or they provide reducing equivalents for the reduction of disulfides prior to degradation. In addition, they contribute to the thiol-dependent regulation of protein activities, and they help to counteract oxidative stress. The existence of oxidizing and reducing pathways in the same compartment poses a potential problem as the cell has to avoid futile cycles of oxidation and subsequent reduction reactions. Thus, compartments that contain oxidizing machineries have developed sophisticated ways to spatiotemporally balance and regulate oxidation and reduction. In this review, we discuss oxidizing and reducing pathways in the endoplasmic reticulum, the periplasm and the mitochondrial intermembrane space and highlight the role of glutathione especially in the endoplasmic reticulum and the intermembrane space. This article is part of a Special Issue entitled: Thiol-Based Redox Processes.
DOI: 10.1016/j.bbapap.2014.02.004
PubMed: 24534645
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Conversely, in compartments in which proteins are translated such as the cytosol, the mitochondrial matrix and the chloroplast stroma proteins are kept reduced by the thioredoxin and glutaredoxin systems that functionally overlap. The highly reducing NADPH pool thereby serves as electron donor that enables glutathione reductase and thioredoxin reductase to keep glutathione pools and thioredoxins in their reduced redox state, respectively. Notably, also compartments containing oxidizing machineries are linked to these reducing pathways. Reducing pathways aid in proofreading of disulfide bond formation by isomerization or they provide reducing equivalents for the reduction of disulfides prior to degradation. In addition, they contribute to the thiol-dependent regulation of protein activities, and they help to counteract oxidative stress. The existence of oxidizing and reducing pathways in the same compartment poses a potential problem as the cell has to avoid futile cycles of oxidation and subsequent reduction reactions. Thus, compartments that contain oxidizing machineries have developed sophisticated ways to spatiotemporally balance and regulate oxidation and reduction. In this review, we discuss oxidizing and reducing pathways in the endoplasmic reticulum, the periplasm and the mitochondrial intermembrane space and highlight the role of glutathione especially in the endoplasmic reticulum and the intermembrane space. This article is part of a Special Issue entitled: Thiol-Based Redox Processes. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">24534645</PMID><DateCompleted><Year>2014</Year><Month>07</Month><Day>29</Day></DateCompleted><DateRevised><Year>2016</Year><Month>11</Month><Day>26</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0006-3002</ISSN><JournalIssue CitedMedium="Print"><Volume>1844</Volume><Issue>8</Issue><PubDate><Year>2014</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Biochimica et biophysica acta</Title><ISOAbbreviation>Biochim Biophys Acta</ISOAbbreviation></Journal><ArticleTitle>Balancing oxidative protein folding: the influences of reducing pathways on disulfide bond formation.</ArticleTitle><Pagination><MedlinePgn>1383-90</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.bbapap.2014.02.004</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S1570-9639(14)00025-9</ELocationID><Abstract><AbstractText>Oxidative protein folding is confined to few compartments, including the endoplasmic reticulum, the mitochondrial intermembrane space and the bacterial periplasm. Conversely, in compartments in which proteins are translated such as the cytosol, the mitochondrial matrix and the chloroplast stroma proteins are kept reduced by the thioredoxin and glutaredoxin systems that functionally overlap. The highly reducing NADPH pool thereby serves as electron donor that enables glutathione reductase and thioredoxin reductase to keep glutathione pools and thioredoxins in their reduced redox state, respectively. Notably, also compartments containing oxidizing machineries are linked to these reducing pathways. Reducing pathways aid in proofreading of disulfide bond formation by isomerization or they provide reducing equivalents for the reduction of disulfides prior to degradation. In addition, they contribute to the thiol-dependent regulation of protein activities, and they help to counteract oxidative stress. The existence of oxidizing and reducing pathways in the same compartment poses a potential problem as the cell has to avoid futile cycles of oxidation and subsequent reduction reactions. Thus, compartments that contain oxidizing machineries have developed sophisticated ways to spatiotemporally balance and regulate oxidation and reduction. In this review, we discuss oxidizing and reducing pathways in the endoplasmic reticulum, the periplasm and the mitochondrial intermembrane space and highlight the role of glutathione especially in the endoplasmic reticulum and the intermembrane space. This article is part of a Special Issue entitled: Thiol-Based Redox Processes. </AbstractText><CopyrightInformation>Copyright © 2014 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Kojer</LastName><ForeName>Kerstin</ForeName><Initials>K</Initials><AffiliationInfo><Affiliation>Cellular Biochemistry, University of Kaiserslautern, Erwin-Schroedinger-Str. 13, 67663 Kaiserslautern, Germany.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Riemer</LastName><ForeName>Jan</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Cellular Biochemistry, University of Kaiserslautern, Erwin-Schroedinger-Str. 13, 67663 Kaiserslautern, Germany. Electronic address: jan.riemer@biologie.uni-kl.de.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D016454">Review</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>02</Month><Day>15</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Biochim Biophys Acta</MedlineTA><NlmUniqueID>0217513</NlmUniqueID><ISSNLinking>0006-3002</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D004220">Disulfides</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004220" MajorTopicYN="N">Disulfides</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004721" MajorTopicYN="N">Endoplasmic Reticulum</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010084" MajorTopicYN="Y">Oxidation-Reduction</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018384" MajorTopicYN="N">Oxidative Stress</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017510" MajorTopicYN="Y">Protein Folding</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D015398" MajorTopicYN="N">Signal Transduction</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Glutathione</Keyword><Keyword MajorTopicYN="N">Mitochondrial intermembrane space</Keyword><Keyword MajorTopicYN="N">Oxidative folding</Keyword><Keyword MajorTopicYN="N">Reducing pathways</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2013</Year><Month>10</Month><Day>01</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2014</Year><Month>01</Month><Day>31</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2014</Year><Month>02</Month><Day>07</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>2</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>2</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>7</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">24534645</ArticleId><ArticleId IdType="pii">S1570-9639(14)00025-9</ArticleId><ArticleId IdType="doi">10.1016/j.bbapap.2014.02.004</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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