Show simple item record

hal.structure.identifierInteractions Arbres-Microorganismes [IAM]
dc.contributor.authorJACQUOT, Jean-Pierre
hal.structure.identifierInteractions Arbres-Microorganismes [IAM]
dc.contributor.authorCOUTURIER, Jérémy
hal.structure.identifierCristallographie, Résonance Magnétique et Modélisations [CRM2]
dc.contributor.authorDIDIERJEAN, Claude
hal.structure.identifierInteractions Arbres-Microorganismes [IAM]
dc.contributor.authorGELHAYE, Éric
hal.structure.identifierInteractions Arbres-Microorganismes [IAM]
dc.contributor.authorMOREL-ROUHIER, Mélanie
hal.structure.identifierInteractions Arbres-Microorganismes [IAM]
dc.contributor.authorHECKER, Arnaud
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
hal.structure.identifierSpemann Graduate School of Biology and Medicine [SGBM]
hal.structure.identifierInteractions Arbres-Microorganismes [IAM]
hal.structure.identifierFakultät für Biologie = Faculty of Biology [Freiburg]
dc.contributor.authorGÜTLE, Desirée D.
hal.structure.identifierInteractions Arbres-Microorganismes [IAM]
dc.contributor.authorROUHIER, Nicolas
dc.date.issued2016
dc.identifier.issn1286-4560
dc.description.abstractEnThis paper describes how the combination of genomics, genetic engineering, and 3D structural characterization has helped clarify the redox regulatory networks in poplar with consequences not only in system biology in plants but also in bacteria and mammalian systems.ContextTree genomes are increasingly available with a large number of orphan genes coding for proteins, the function of which is still unknown.Aims and methodsModern techniques of genome analysis coupled with recombinant protein technology and massive 3D structural determination of tree proteins should help elucidate the function of many of the proteins encoded by orphan genes. X-ray crystallography and NMR will be the methods of choice for protein structure determination.ResultsIn this review, we provide examples illustrating how the above-mentioned techniques improved our understanding of redox regulatory circuits in poplar, the first forest tree species sequenced. We showed that poplar peroxiredoxins use either thioredoxin or glutaredoxin as electron donors to reduce hydrogen peroxide. That glutaredoxin could be a reductant was unknown at the time of this discovery even in other biological organisms and was later confirmed notably by the observation that the two genes are fused in some bacteria and by the resolution of the structure of the bacterial hybrid protein. Similarly, genome analysis coupled to in vitro analysis of enzymatic properties led to the discovery that some plant methionine sulfoxide reductases can also use both thioredoxins and glutaredoxins as electron donors. Besides their disulfide reductase activity, it has been demonstrated that some poplar glutaredoxins are also involved in iron-sulfur center biogenesis and assembly. The original 3D structure determination has been made with poplar glutaredoxin C1 and then confirmed in a variety of other biological organisms including human. Our work also showed that in plants, so-called glutathione peroxidases use thioredoxins and not glutathione as electron donors. This is true for all non-selenocysteine-containing glutathione peroxidases. Finally, connections between the thioredoxin and glutaredoxin systems have been elucidated through the study of atypical poplar thioredoxins.ConclusionAltogether, these data illustrate how the combination of genetic engineering and structural biology improves our understanding of biological processes and helps fuel systems biology for trees and other biological species.
dc.description.sponsorshipRecherches Avancées sur l'Arbre et les Ecosytèmes Forestiers - ANR-11-LABX-0002
dc.language.isoen
dc.publisherSpringer Nature (since 2011)/EDP Science (until 2010)
dc.rights.urihttp://hal.archives-ouvertes.fr/licences/copyright/
dc.subject.enPoplar
dc.subject.en3D protein structure
dc.subject.enGenome sequence
dc.subject.enGlutaredoxin
dc.subject.enRedox
dc.subject.enThioredoxin
dc.title.enStructural and functional characterization of tree proteins involved in redox regulation: a new frontier in forest science
dc.typeArticle de revue
dc.identifier.doi10.1007/s13595-014-0442-9
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalAnnals of Forest Science
bordeaux.page119-134
bordeaux.volume73
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-01284229
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01284229v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Annals%20of%20Forest%20Science&rft.date=2016&rft.volume=73&rft.issue=1&rft.spage=119-134&rft.epage=119-134&rft.eissn=1286-4560&rft.issn=1286-4560&rft.au=JACQUOT,%20Jean-Pierre&COUTURIER,%20J%C3%A9r%C3%A9my&DIDIERJEAN,%20Claude&GELHAYE,%20%C3%89ric&MOREL-ROUHIER,%20M%C3%A9lanie&rft.genre=article


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record