Article (Scientific journals)
Efficient expression vectors and host strain for the production of recombinant proteins by Yarrowia lipolytica in process conditions
Park, Y.-K.; Vandermies, Marie; Soudier, P. et al.
2019In Microbial Cell Factories, 18 (1)
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Keywords :
CalB; Erythritol; Induction; Promoter; Protein secretion; Regulation; Synthetic promoter; Upstream activating sequence; Yarrowia lipolytica; Article; CalB gene; EYD1 gene; EYK1 gene; XPR2 gene; Yarrowia; Fungal Proteins; Gene Expression; Lipase; Microorganisms, Genetically-Modified; Promoter Regions, Genetic; Recombinant Proteins
Abstract :
[en] Background: The oleaginous yeast Yarrowia lipolytica is increasingly used as an alternative cell factory for the production of recombinant proteins. Recently, regulated promoters from genes EYK1 and EYD1, encoding an erythrulose kinase and an erythritol dehydrogenase, respectively, have been identified and characterized in this yeast. Hybrid promoters up-regulated by polyols such as erythritol and erythrulose have been developed based on tandem copies of upstream activating sequences from EYK1 (UAS1EYK1) and XPR2 (encoding extracellular protease, UAS1XPR2) promoters. Results: The strength of native (pEYD1) and engineered promoters (pEYK1-3AB and pHU8EYK) was compared using the extracellular lipase CalB from Candida antarctica as a model protein and a novel dedicated host strain. This latter is engineered in polyol metabolism and allows targeted chromosomal integration. In process conditions, engineered promoters pEYK1-3AB and pHU8EYK yielded 2.8 and 2.5-fold higher protein productivity, respectively, as compared to the reference pTEF promoter. We also demonstrated the possibility of multicopy integration in the newly developed host strain. In batch bioreactor, the CalB multi-copy strain RIY406 led to a 1.6 fold increased lipase productivity (45,125 U mL-1) within 24 h as compared to the mono-copy strain. Conclusions: The expression system described herein appears promising for recombinant extracellular protein production in Y. lipolytica. © 2019 The Author(s).
Disciplines :
Biotechnology
Author, co-author :
Park, Y.-K.;  Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, 78350, France
Vandermies, Marie ;  Université de Liège - ULiège > Terra
Soudier, P.;  Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, 78350, France
Telek, Samuel  ;  Université de Liège - ULiège > Département GxABT > Microbial, food and biobased technologies
Thomas, Stéphane
Nicaud, J.-M.;  Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, 78350, France, Micalis Institute, UMR1319, Team BIMLip: Integrative Metabolism of Microbial Lipids, INRA-AgroParisTech, Domaine de Vilvert, Jouy-en-Josas, 78352, France
Fickers, Patrick ;  Université de Liège - ULiège > Département GxABT > Microbial, food and biobased technologies
Language :
English
Title :
Efficient expression vectors and host strain for the production of recombinant proteins by Yarrowia lipolytica in process conditions
Publication date :
2019
Journal title :
Microbial Cell Factories
eISSN :
1475-2859
Publisher :
BioMed Central Ltd.
Volume :
18
Issue :
1
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 February 2021

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