Expression of Schwanniomyces occidentalis α-Amylase gene in Saccharomyces cerevisiae var. diastaticus

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Title
Expression of Schwanniomyces occidentalis α-Amylase gene in Saccharomyces cerevisiae var. diastaticus
Author(s)
Jeong Nam Park; Dong Jun Shin; Hee Ok Kim; Dong Ho Kim; Hwang Hee Blaise Lee; Soon Bae Chun; Suk Bai
Bibliographic Citation
Journal of Microbiology and Biotechnology, vol. 9, no. 5, pp. 668-671
Publication Year
1999
Abstract
The gene encoding Schwanniomyces occidentalis α-amylase (AMY) was introduced into Saccharomyces cerevisiae var diastaticus which secreted only glucoamylase, by using a linearized yeast integrating vector to develop stable strains with a capability of secreting α-amylase and glucoamylase simultaneously. A dominant selectable marker, the geneticin (G418) resistance gene (Gt), was cloned into a vector to screen wild-type diploid transformants harboring the AMY gene. The amylolytic activities of transformants were about 3-7 times higher than those of the recipient strains. When grown in nonselective media, the transformants with the linearized integrating vector containing the AMY gene exhibited almost all of the mitotic stability after 100 generations.
Keyword
Schwanniomyces occidentalis α-amylase geneyeast integrating vectormitotic stabilitySaccharomyces cerevisiae var. diastaticus
ISSN
1017-7825
Publisher
South Korea
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
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