Abstract: The object of the present invention is to provide a microorganism capable of maintaining its xylose fermentation ability over a long period of time. The present invention also provides a microorganism deficient in the function of expressing NAD kinase gene and/or FPS1 gene, a method for preparing the above microorganism and a method for producing ethanol using the above microorganism.

Abstract: The present invention relates to a glucose-induced inactivation/degradation-resistant transporter gene and use thereof, and more particularly, to a brewing yeast having excellent assimilation of oligosaccharides (maltose, maltotriose, etc.), an alcoholic beverage prepared using the yeast, a method of producing the alcoholic beverage, etc. More specifically, the present invention relates to a glucose-induced inactivation/degradation-resistant transporter including Mal21p, mutant Mal31p, mutant Mal61p, mutant Mtt1p, mutant Agt1p, etc., a gene encoding the transporter, a method of producing an alcoholic beverage using thereof, and so on.

Abstract: The object of the present invention is to provide a microorganism capable of maintaining its xylose fermentation ability over a long period of time. The present invention also provides a microorganism deficient in the function of expressing NAD kinase gene and/or FPS1 gene, a method for preparing the above microorganism and a method for producing ethanol using the above microorganism.

Abstract: The present invention relates to a glucose-induced inactivation- or degradation-resistant transporter gene and use thereof, and more particularly, to a brewing yeast having excellent assimilation of oligosaccharides (e.g., maltose or maltotriose), an alcoholic beverage prepared using the yeast, and a method of producing the alcoholic beverage. More specifically, the present invention relates to a glucose-induced inactivation- or degradation-resistant transporter including, for example, Mal21p, mutant Mal31p, mutant Mal61p, mutant Mtt1p or mutant Agt1p, a gene encoding the transporter, and a method of producing an alcoholic beverage using the same.

Abstract: The present invention relates to a glucose-induced inactivation/degradation resistant transporter gene and use thereof, and more particularly to a brewery yeast having excellent assimilability of oligosaccharides (maltose, maltotriose, etc.), an alcoholic beverage produced using the yeast, and so on. In particular, the present invention relates to a glucose-induced inactivation/degradation resistant transporter such as Mal21p, etc., a gene encoding the same, a method of producing an alcoholic beverage using the same; and so on.

Abstract: The present invention relates to alpha-glucoside transporters which can promote assimilation of maltose/maltotriose contained in wort, etc., and so on. Especially in relation to glucose-induced inactivation/degradation, the present invention relates to alpha-glucoside transporters which are less susceptible to glucose-induced inactivation/degradation and can take up maltotriose like AGT1, by constructing the hybrid of AGT1 and MAL21. By using, e.g., a yeast expressing the alpha-glucoside transporter of the present invention, the fermentation rate of moromi mash containing oligosaccharides such as maltose/maltotriose can be accelerated.

Abstract: The present invention relates to a glucose-induced inactivation/degradation-resistant transporter gene and use thereof, and more particularly, to a brewing yeast having excellent assimilation of oligosaccharides (maltose, maltotriose, etc.), an alcoholic beverage prepared using the yeast, a method of producing the alcoholic beverage, etc. More specifically, the present invention relates to a glucose-induced inactivation/degradation-resistant transporter including Mal21p, mutant Mal31p, mutant Mal61p, mutant Mtt1p, mutant Agt1p, etc., a gene encoding the transporter, a method of producing an alcoholic beverage using thereof, and so on.

Abstract: The present invention relates to a glucose-induced inactivation/degradation resistant transporter gene and use thereof, and more particularly to a brewery yeast having excellent assimilability of oligosaccharides (maltose, maltotriose, etc.), an alcoholic beverage produced using the yeast, and so on. In particular, the present invention relates to a glucose-induced inactivation/degradation resistant transporter such as Mal21p, etc., a gene encoding the same, a method of producing an alcoholic beverage using the same; and so on.

Abstract: The present invention relates to alpha-glucoside transporters which can promote assimilation of maltose/maltotriose contained in wort, etc., and so on. Especially in relation to glucose-induced inactivation/degradation, the present invention relates to alpha-glucoside transporters which are less susceptible to glucose-induced inactivation/degradation and can take up maltotriose like AGT1, by constructing the hybrid of AGT1 and MAL21. By using, e.g., a yeast expressing the alpha-glucoside transporter of the present invention, the fermentation rate of moromi mash containing oligosaccharides such as maltose/maltotriose can be accelerated.

Abstract: Novel purine nucleosidase derived from Ochrobactrum anthropi microorganisms, a gene system coding therefor, uses therefor and particularly its use in the production of beer.

Abstract: A process for manufacturing beer having a reduced content of purine compounds by using wort having a reduced content of purine nucleosides as a result of decomposing purine nucleosides into purine bases by using nucleoside phosphorylase or nucleosidase, or decomposing purine nucleosides into purine bases during fermentation and having the purine bases metabolized by yeast.

Abstract: The present invention relates to an expression vector which is induced by methanol and/or glycerol utilizing an alcohol oxidase gene of a methylotrophic yeast; a recombinant methylotrophic yeast containing said vector and capable of accumulating a significantly high amount of an expression product of a heterologous gene; and a method for producing useful products utilizing said recombinant.The expression vector is constructed by utilizing the promoter and terminator of an alcohol oxidase gene of methylotrophic yeast. Further, a significantly high amount of adenylate kinase, cytochrome C552 or peroxidase is produced by using said expression vector.

Abstract: A peroxidase gene derived from Arthromyse ramosus and its cloning and expression in E. coli and yeast is disclosed. The peroxidase encoded by this gene is not-specific and does not contain isozymes and hence is suitable as a diagnostic reagent or as a marker enzyme in enzyme innunoassays.