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dc.rights.licenseopenen_US
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorZHANG, Jia-Rong
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorTROSSAT-MAGNIN, Claudine
IDREF: 225347954
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorBATHANY, Katell
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorNEGRONI, Luc
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorDELROT, Serge
IDREF: 058711503
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorCHAUDIÈRE, Jean
dc.date.accessioned2023-02-08T14:44:35Z
dc.date.available2023-02-08T14:44:35Z
dc.date.issued2022-02-03
dc.identifier.issn1420-3049en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/171900
dc.description.abstractEnTwelve polyphenols from three distinct families (dihydroflavonols, flavan-3-ols, and flavanones) were studied as potential substrates of anthocyanidin synthase from Vitis vinifera (VvANS). Only flavan-3-ols of (2R,3S) configuration having either a catechol or gallol group on ring B are accepted as substrates. Only dihydroflavonols of (2R,3R) configuration are accepted as substrates, but a catechol or gallol group is not mandatory. Flavanones are not substrates of VvANS. HPLC and MS/MS analyses of the enzymatic products showed that the VvANS-catalyzed oxidative transformation of (+)-dihydroflavonols, such as dihydroquercetin, dihydrokaempferol and dihydromyricetin, leads only to the corresponding flavonols. Among the flavan-3-ols recognized as substrates, (+)-gallocatechin was only transformed into delphinidin by VvANS, whereas (+)-catechin was transformed into three products, including two major products that were an ascorbate–cyanidin adduct and a dimer of oxidized catechin, and a minor product that was cyanidin. Data from real-time MS monitoring of the enzymatic transformation of (+)-catechin suggest that its products are all derived from the initial C3-hydroxylation intermediate, i.e., a 3,3-gem-diol, and their most likely formation mechanism is discussed.
dc.language.isoENen_US
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.subject.enAnthocyanidin synthase
dc.subject.enVitis vinifera
dc.subject.en2-oxoglutarate
dc.subject.enAscorbate
dc.subject.enDihydroflavonol
dc.subject.enFlavanol
dc.subject.enCatechin
dc.subject.enLeucoanthocyanidin
dc.subject.enStructure-activity relationship
dc.subject.enMass spectrometry
dc.title.enOxidative Transformation of Dihydroflavonols and Flavan-3-ols by Anthocyanidin Synthase from Vitis vinifera
dc.typeArticle de revueen_US
dc.identifier.doi10.3390/molecules27031047en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalMoleculesen_US
bordeaux.page1047en_US
bordeaux.volume27en_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_US
bordeaux.issue3en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.institutionINRAEen_US
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.identifierhal-03979080
hal.version1
hal.date.transferred2023-02-08T14:44:38Z
hal.exporttrue
dc.rights.ccCC BYen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Molecules&rft.date=2022-02-03&rft.volume=27&rft.issue=3&rft.spage=1047&rft.epage=1047&rft.eissn=1420-3049&rft.issn=1420-3049&rft.au=ZHANG,%20Jia-Rong&TROSSAT-MAGNIN,%20Claudine&BATHANY,%20Katell&NEGRONI,%20Luc&DELROT,%20Serge&rft.genre=article


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