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Biochemical characterization of a putative wheat caffeic acid O-methyltransferase

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dc.contributor.authorZhou, Jian-Min-
dc.contributor.authorSeo, Yong Weon-
dc.contributor.authorIbrahim, Ragai K.-
dc.date.accessioned2021-09-08T18:26:22Z-
dc.date.available2021-09-08T18:26:22Z-
dc.date.created2021-06-10-
dc.date.issued2009-04-
dc.identifier.issn0981-9428-
dc.identifier.urihttps://scholar.korea.ac.kr/handle/2021.sw.korea/120324-
dc.description.abstractA wheat (Triticum aestivum L., near isogenic line of Hamlet) O-methyltransferase (OMT) was previously reported as a putative caffeic acid OMT (TaCOMT1), involved in lignin biosynthesis, based on its high sequence similarity with a number of graminaceous COMTs. The fact that the putative TaCOMT1 exhibits a significantly high sequence homology to another recently characterized wheat flavone-specific GMT (TaOMT2), and that molecular modeling studies indicated several conserved amino acid residues involved in substrate binding and catalysis of both proteins, prompted an investigation of its appropriate substrate specificity. We report here that TaCOMT1 exhibits highest preference for the flavone tricetin, and lowest activity with the lignin precursors, caffeic acid/5-hydroxyferulic acid as the methyl acceptor molecules, indicating that it is not involved in lignin biosynthesis. We recommend its reannotation to a flavone-specific TaOMT1 that is distinct from TaOMT2. Crown Copyright (C) 2008 Published by Elsevier Masson SAS. All rights reserved.-
dc.languageEnglish-
dc.language.isoen-
dc.publisherELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER-
dc.subjectFUNCTIONAL EXPRESSION-
dc.subjectMOLECULAR-CLONING-
dc.subjectGENE-PRODUCT-
dc.subjectMETHYLATION-
dc.subjectLIGNIN-
dc.subjectCDNA-
dc.subjectBIOSYNTHESIS-
dc.subjectFLAVONOIDS-
dc.titleBiochemical characterization of a putative wheat caffeic acid O-methyltransferase-
dc.typeArticle-
dc.contributor.affiliatedAuthorSeo, Yong Weon-
dc.identifier.doi10.1016/j.plaphy.2008.11.011-
dc.identifier.scopusid2-s2.0-61349175180-
dc.identifier.wosid000264915300012-
dc.identifier.bibliographicCitationPLANT PHYSIOLOGY AND BIOCHEMISTRY, v.47, no.4, pp.322 - 326-
dc.relation.isPartOfPLANT PHYSIOLOGY AND BIOCHEMISTRY-
dc.citation.titlePLANT PHYSIOLOGY AND BIOCHEMISTRY-
dc.citation.volume47-
dc.citation.number4-
dc.citation.startPage322-
dc.citation.endPage326-
dc.type.rimsART-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaPlant Sciences-
dc.relation.journalWebOfScienceCategoryPlant Sciences-
dc.subject.keywordPlusFUNCTIONAL EXPRESSION-
dc.subject.keywordPlusMOLECULAR-CLONING-
dc.subject.keywordPlusGENE-PRODUCT-
dc.subject.keywordPlusMETHYLATION-
dc.subject.keywordPlusLIGNIN-
dc.subject.keywordPlusCDNA-
dc.subject.keywordPlusBIOSYNTHESIS-
dc.subject.keywordPlusFLAVONOIDS-
dc.subject.keywordAuthorFlavone-specific O-methyltransferase-
dc.subject.keywordAuthorBiochemical characterization-
dc.subject.keywordAuthorReannotation-
dc.subject.keywordAuthorTricetin-
dc.subject.keywordAuthorTriticum aestivum L.-
dc.subject.keywordAuthorWheat-
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