Engineering the xylose-catabolizing Dahms pathway for production of poly(d-lactate-co-glycolate) and poly(d-lactate-co-glycolate-co-d-2-hydroxybutyrate) in Escherichia coli

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dc.contributor.authorChoi, So Youngko
dc.contributor.authorKim, Won Junko
dc.contributor.authorYu, Seung Jungko
dc.contributor.authorPark, Si Jaeko
dc.contributor.authorIm, Sung Gapko
dc.contributor.authorLee, Sang Yupko
dc.date.accessioned2017-11-21T04:06:08Z-
dc.date.available2017-11-21T04:06:08Z-
dc.date.created2017-11-20-
dc.date.created2017-11-20-
dc.date.created2017-11-20-
dc.date.created2017-11-20-
dc.date.issued2017-11-
dc.identifier.citationMicrobial Biotechnology, v.10, no.6, pp.1353 - 1364-
dc.identifier.issn1751-7915-
dc.identifier.urihttp://hdl.handle.net/10203/227197-
dc.description.abstractPoly(lactate-co-glycolate), PLGA, is a representative synthetic biopolymer widely used in medical applications. Recently, we reported one-step direct fermentative production of PLGA and its copolymers by metabolically engineered Escherichia coli from xylose and glucose. In this study, we report development of metabolically engineered E.coli strains for the production of PLGA and poly(d-lactate-co-glycolate-co-d-2-hydroxybutyrate) having various monomer compositions from xylose as a sole carbon source. To achieve this, the metabolic flux towards Dahms pathway was modulated using five different synthetic promoters for the expression of Caulobacter crescentus XylBC. Further metabolic engineering to concentrate the metabolic flux towards d-lactate and glycolate resulted in production of PLGA and poly(d-lactate-co-glycolate-co-d-2-hydroxybutyrate) with various monomer fractions from xylose. The engineered E.coli strains produced polymers containing 8.8-60.9mol% of glycolate up to 6.93gl(-1) by fed-batch cultivation in a chemically defined medium containing xylose. Finally, the biocompatibility of poly(d-lactate-co-glycolate-co-d-2-hydroxybutyrate) was confirmed by live/dead assay using human mesenchymal stem cells.-
dc.languageEnglish-
dc.publisherSociety for Applied Microbiology | Wiley-
dc.titleEngineering the xylose-catabolizing Dahms pathway for production of poly(d-lactate-co-glycolate) and poly(d-lactate-co-glycolate-co-d-2-hydroxybutyrate) in Escherichia coli-
dc.typeArticle-
dc.identifier.wosid000413904000011-
dc.identifier.scopusid2-s2.0-85018545758-
dc.type.rimsART-
dc.citation.volume10-
dc.citation.issue6-
dc.citation.beginningpage1353-
dc.citation.endingpage1364-
dc.citation.publicationnameMicrobial Biotechnology-
dc.identifier.doi10.1111/1751-7915.12721-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorIm, Sung Gap-
dc.contributor.localauthorLee, Sang Yup-
dc.contributor.nonIdAuthorPark, Si Jae-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordPlusBIOSYNTHESIS-
dc.subject.keywordPlusPLGA-
dc.subject.keywordPlusACID-
dc.subject.keywordPlusCHEMICALS-
dc.subject.keywordPlusEFFICIENT-
dc.subject.keywordPlusDELIVERY-
dc.subject.keywordPlusPOLYHYDROXYALKANOATES-
dc.subject.keywordPlus2-HYDROXYBUTYRATE-
dc.subject.keywordPlusMICROSPHERES-
dc.subject.keywordPlusDEGRADATION-
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