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Title: Engineered yeast strains enabling anaerobic xylose fermentation decoupled from microbial growth

Abstract

The present invention relates to materials and methods for the production of ethanol. More particularly, the present invention provides genetically modified strains of Saccharomyces cerevisiae exhibiting decreased level of BCY1 protein activity and capable of anaerobic fermentation of xylose into ethanol without the need for cell growth. Also provided are methods of using such genetically engineered yeast strains for improved anaerobic xylose fermentation in the yeast for industrial-scale production of various fuels, chemical feedstocks, and synthetic polymers.

Inventors:
;
Issue Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1892912
Patent Number(s):
11326174
Application Number:
16/542,758
Assignee:
Wisconsin Alumni Research Foundation (Madison, WI)
Patent Classifications (CPCs):
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07K - PEPTIDES
C - CHEMISTRY C12 - BIOCHEMISTRY C12N - MICROORGANISMS OR ENZYMES
DOE Contract Number:  
FC02-07ER64494
Resource Type:
Patent
Resource Relation:
Patent File Date: 08/16/2019
Country of Publication:
United States
Language:
English

Citation Formats

Myers, Kevin S., and Gasch, Audrey P. Engineered yeast strains enabling anaerobic xylose fermentation decoupled from microbial growth. United States: N. p., 2022. Web.
Myers, Kevin S., & Gasch, Audrey P. Engineered yeast strains enabling anaerobic xylose fermentation decoupled from microbial growth. United States.
Myers, Kevin S., and Gasch, Audrey P. Tue . "Engineered yeast strains enabling anaerobic xylose fermentation decoupled from microbial growth". United States. https://www.osti.gov/servlets/purl/1892912.
@article{osti_1892912,
title = {Engineered yeast strains enabling anaerobic xylose fermentation decoupled from microbial growth},
author = {Myers, Kevin S. and Gasch, Audrey P.},
abstractNote = {The present invention relates to materials and methods for the production of ethanol. More particularly, the present invention provides genetically modified strains of Saccharomyces cerevisiae exhibiting decreased level of BCY1 protein activity and capable of anaerobic fermentation of xylose into ethanol without the need for cell growth. Also provided are methods of using such genetically engineered yeast strains for improved anaerobic xylose fermentation in the yeast for industrial-scale production of various fuels, chemical feedstocks, and synthetic polymers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 10 00:00:00 EDT 2022},
month = {Tue May 10 00:00:00 EDT 2022}
}

Works referenced in this record:

How nutritional status signalling coordinates metabolism and lignocellulolytic enzyme secretion
journal, November 2014


Modifying Yeast Tolerance to Inhibitory Conditions of Ethanol Production Processes
journal, November 2015


Yeast bcy1 mutants with stationary phase-specific defects
journal, September 1997