Development of a Vector Set for High or Inducible Gene Expression and Protein Secretion in the Yeast Genus <i>Blastobotrys</i>

Converting lignocellulosic biomass into value-added products is one of the challenges in developing a sustainable economy. Attempts to engineer fermenting yeasts to recover plant waste are underway. Although intensive metabolic engineering has been conducted to obtain <i>Saccharomyces cerevisi...

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Main Authors: Anita Boisramé, Cécile Neuvéglise
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Journal of Fungi
Subjects:
Online Access:https://www.mdpi.com/2309-608X/8/5/418
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author Anita Boisramé
Cécile Neuvéglise
author_facet Anita Boisramé
Cécile Neuvéglise
author_sort Anita Boisramé
collection DOAJ
description Converting lignocellulosic biomass into value-added products is one of the challenges in developing a sustainable economy. Attempts to engineer fermenting yeasts to recover plant waste are underway. Although intensive metabolic engineering has been conducted to obtain <i>Saccharomyces cerevisiae</i> strains capable of metabolising pentose sugars mainly found in hemicellulose, enzymatic hydrolysis after pretreatment is still required. <i>Blastobotrys raffinosifermentans</i>, which naturally assimilates xylose and arabinose and displays numerous glycoside hydrolases, is a good candidate for direct and efficient conversion of renewable biomass. However, a greater diversity of tools for genetic engineering is needed. Here, we report the characterisation of four new promising promoters, a new dominant marker, and two vectors for the secretion of epitope tagged proteins along with a straightforward transformation protocol. The <i>TDH3</i> promoter is a constitutive promoter stronger than <i>TEF1</i>, and whose activity is maintained at high temperature or in the presence of ethanol. The regulated promoters respond to high temperature for <i>HSP26</i>, gluconeogenic sources for <i>PCK1</i> or presence of xylose oligomers for <i>XYL1</i>. Two expression/secretion vectors were designed based on p<i>TEF1</i> and p<i>TDH3</i>, two endogenous signal peptides from an α-arabinanase and an α-glucuronidase, and two epitopes. A heterologous α-arabinoxylan hydrolase from <i>Apiotrichum siamense</i> was efficiently secreted using these two vectors.
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spelling doaj.art-ce794126b2274b67af860f9672a272f32023-11-23T11:40:45ZengMDPI AGJournal of Fungi2309-608X2022-04-018541810.3390/jof8050418Development of a Vector Set for High or Inducible Gene Expression and Protein Secretion in the Yeast Genus <i>Blastobotrys</i>Anita Boisramé0Cécile Neuvéglise1SPO, INRAE, Institut Agro, Univ Montpellier, 34060 Montpellier, FranceSPO, INRAE, Institut Agro, Univ Montpellier, 34060 Montpellier, FranceConverting lignocellulosic biomass into value-added products is one of the challenges in developing a sustainable economy. Attempts to engineer fermenting yeasts to recover plant waste are underway. Although intensive metabolic engineering has been conducted to obtain <i>Saccharomyces cerevisiae</i> strains capable of metabolising pentose sugars mainly found in hemicellulose, enzymatic hydrolysis after pretreatment is still required. <i>Blastobotrys raffinosifermentans</i>, which naturally assimilates xylose and arabinose and displays numerous glycoside hydrolases, is a good candidate for direct and efficient conversion of renewable biomass. However, a greater diversity of tools for genetic engineering is needed. Here, we report the characterisation of four new promising promoters, a new dominant marker, and two vectors for the secretion of epitope tagged proteins along with a straightforward transformation protocol. The <i>TDH3</i> promoter is a constitutive promoter stronger than <i>TEF1</i>, and whose activity is maintained at high temperature or in the presence of ethanol. The regulated promoters respond to high temperature for <i>HSP26</i>, gluconeogenic sources for <i>PCK1</i> or presence of xylose oligomers for <i>XYL1</i>. Two expression/secretion vectors were designed based on p<i>TEF1</i> and p<i>TDH3</i>, two endogenous signal peptides from an α-arabinanase and an α-glucuronidase, and two epitopes. A heterologous α-arabinoxylan hydrolase from <i>Apiotrichum siamense</i> was efficiently secreted using these two vectors.https://www.mdpi.com/2309-608X/8/5/418promoterxylanCAzymeyeast<i>Blastobotrys</i> <i>yvelinesensis</i> nomen nudumcell factory
spellingShingle Anita Boisramé
Cécile Neuvéglise
Development of a Vector Set for High or Inducible Gene Expression and Protein Secretion in the Yeast Genus <i>Blastobotrys</i>
Journal of Fungi
promoter
xylan
CAzyme
yeast
<i>Blastobotrys</i> <i>yvelinesensis</i> nomen nudum
cell factory
title Development of a Vector Set for High or Inducible Gene Expression and Protein Secretion in the Yeast Genus <i>Blastobotrys</i>
title_full Development of a Vector Set for High or Inducible Gene Expression and Protein Secretion in the Yeast Genus <i>Blastobotrys</i>
title_fullStr Development of a Vector Set for High or Inducible Gene Expression and Protein Secretion in the Yeast Genus <i>Blastobotrys</i>
title_full_unstemmed Development of a Vector Set for High or Inducible Gene Expression and Protein Secretion in the Yeast Genus <i>Blastobotrys</i>
title_short Development of a Vector Set for High or Inducible Gene Expression and Protein Secretion in the Yeast Genus <i>Blastobotrys</i>
title_sort development of a vector set for high or inducible gene expression and protein secretion in the yeast genus i blastobotrys i
topic promoter
xylan
CAzyme
yeast
<i>Blastobotrys</i> <i>yvelinesensis</i> nomen nudum
cell factory
url https://www.mdpi.com/2309-608X/8/5/418
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