Inulase-secreting strain of Saccharomyces cerevisiae produces fructose

Autor: E E, Brevnova, D G, Kozlov, B D, Efremov, S V, Benevolensky
Rok vydání: 1999
Předmět:
Zdroj: Biotechnology and bioengineering. 60(4)
ISSN: 0006-3592
Popis: The gene encoding inulase of the yeast Kluyveromyces marxianus (INU1Km) was cloned and expressed in the inulin-negative yeast Saccharomyces cerevisiae. Cells of S. cerevisiae transformed with the INU1Km gene have acquired extracellular inulase activity and were able to grow in the medium with inulin as a sole carbon source. The S. cerevisiae strain was constructed that is capable of heterologous expression of secreted K. marxianus inulase and is defective in fructose uptake due to null-mutations of the hexokinase structural genes HXK1 and HXK2. When grown in inulin-containing media, this strain is capable of accumulating at least 10% glucose-free fructose in the culture liquid.
Databáze: OpenAIRE