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The amino‐terminal tail of Hxt11 confers membrane stability to the Hxt2 sugar transporter and improves xylose fermentation in the presence of acetic acid

Hxt2 is a glucose repressed, high affinity glucose transporter of the yeast Saccharomyces cerevisiae and is subjected to high glucose induced degradation. Hxt11 is a sugar transporter that is stably expressed at the membrane irrespective the sugar concentration. To transfer this property to Hxt2, th...

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Autores principales: Shin, Hyun Yong, Nijland, Jeroen G., de Waal, Paul P., Driessen, Arnold J. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5575463/
https://www.ncbi.nlm.nih.gov/pubmed/28464256
http://dx.doi.org/10.1002/bit.26322
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author Shin, Hyun Yong
Nijland, Jeroen G.
de Waal, Paul P.
Driessen, Arnold J. M.
author_facet Shin, Hyun Yong
Nijland, Jeroen G.
de Waal, Paul P.
Driessen, Arnold J. M.
author_sort Shin, Hyun Yong
collection PubMed
description Hxt2 is a glucose repressed, high affinity glucose transporter of the yeast Saccharomyces cerevisiae and is subjected to high glucose induced degradation. Hxt11 is a sugar transporter that is stably expressed at the membrane irrespective the sugar concentration. To transfer this property to Hxt2, the N‐terminal tail of Hxt2 was replaced by the corresponding region of Hxt11 yielding a chimeric Hxt11/2 transporter. This resulted in the stable expression of Hxt2 at the membrane and improved the growth on 8% d‐glucose and 4% d‐xylose. Mutation of N361 of Hxt11/2 into threonine reversed the specificity for d‐xylose over d‐glucose with high d‐xylose transport rates. This mutant supported efficient sugar fermentation of both d‐glucose and d‐xylose at industrially relevant sugar concentrations even in the presence of the inhibitor acetic acid which is normally present in lignocellulosic hydrolysates. Biotechnol. Bioeng. 2017;114: 1937–1945. © 2017 The Authors. Biotechnology and Bioengineering Published by Wiley Periodicals, Inc.
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spelling pubmed-55754632017-09-15 The amino‐terminal tail of Hxt11 confers membrane stability to the Hxt2 sugar transporter and improves xylose fermentation in the presence of acetic acid Shin, Hyun Yong Nijland, Jeroen G. de Waal, Paul P. Driessen, Arnold J. M. Biotechnol Bioeng Articles Hxt2 is a glucose repressed, high affinity glucose transporter of the yeast Saccharomyces cerevisiae and is subjected to high glucose induced degradation. Hxt11 is a sugar transporter that is stably expressed at the membrane irrespective the sugar concentration. To transfer this property to Hxt2, the N‐terminal tail of Hxt2 was replaced by the corresponding region of Hxt11 yielding a chimeric Hxt11/2 transporter. This resulted in the stable expression of Hxt2 at the membrane and improved the growth on 8% d‐glucose and 4% d‐xylose. Mutation of N361 of Hxt11/2 into threonine reversed the specificity for d‐xylose over d‐glucose with high d‐xylose transport rates. This mutant supported efficient sugar fermentation of both d‐glucose and d‐xylose at industrially relevant sugar concentrations even in the presence of the inhibitor acetic acid which is normally present in lignocellulosic hydrolysates. Biotechnol. Bioeng. 2017;114: 1937–1945. © 2017 The Authors. Biotechnology and Bioengineering Published by Wiley Periodicals, Inc. John Wiley and Sons Inc. 2017-05-23 2017-09 /pmc/articles/PMC5575463/ /pubmed/28464256 http://dx.doi.org/10.1002/bit.26322 Text en © 2017 The Authors. Biotechnology and Bioengineering Published by Wiley Periodicals, Inc. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Articles
Shin, Hyun Yong
Nijland, Jeroen G.
de Waal, Paul P.
Driessen, Arnold J. M.
The amino‐terminal tail of Hxt11 confers membrane stability to the Hxt2 sugar transporter and improves xylose fermentation in the presence of acetic acid
title The amino‐terminal tail of Hxt11 confers membrane stability to the Hxt2 sugar transporter and improves xylose fermentation in the presence of acetic acid
title_full The amino‐terminal tail of Hxt11 confers membrane stability to the Hxt2 sugar transporter and improves xylose fermentation in the presence of acetic acid
title_fullStr The amino‐terminal tail of Hxt11 confers membrane stability to the Hxt2 sugar transporter and improves xylose fermentation in the presence of acetic acid
title_full_unstemmed The amino‐terminal tail of Hxt11 confers membrane stability to the Hxt2 sugar transporter and improves xylose fermentation in the presence of acetic acid
title_short The amino‐terminal tail of Hxt11 confers membrane stability to the Hxt2 sugar transporter and improves xylose fermentation in the presence of acetic acid
title_sort amino‐terminal tail of hxt11 confers membrane stability to the hxt2 sugar transporter and improves xylose fermentation in the presence of acetic acid
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5575463/
https://www.ncbi.nlm.nih.gov/pubmed/28464256
http://dx.doi.org/10.1002/bit.26322
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