Gene encoding trehalose-6-phosphate phosphatase and use thereof

C - Chemistry – Metallurgy – 07 – K

Patent

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C07K 14/435 (2006.01) C12Q 1/42 (2006.01)

Patent

CA 2638770

The present invention relates to a gene encoding trehalose-6-phosphate phosphatase and use thereof, in particular, a yeast for practical use with superior resistance property to dryness and/or low-temperature storage, alcoholic beverages produced with said yeast, and a method for producing said beverages. More particularly, the present invention relates to a yeast, whose resistance property to dryness and/or resistance property to low-temperature storage is enhanced by amplifying expression level of TPS2 gene encoding a trehalose-6-phosphate phosphatase Tps2p in brewer's yeast, especially non- ScTPS2 gene specific to a lager brewing yeast and to a method for producing alcoholic beverages with said yeast, etc.

La présente invention concerne un gène codant pour la tréhalose-6-phosphate phosphatase et ses applications, en particulier une levure dont les propriétés de résistance à la sécheresse et/ou au stockage à basse température sont améliorées, des boissons alcoolisées produites à partir de ladite levure et une méthode de production desdites boissons. Plus particulièrement, la présente invention concerne une levure dont les propriétés de résistance à la sécheresse et/ou au stockage à basse température sont améliorées par l'amplification du niveau d'expression d'un gène TPS2 codant pour une tréhalose-6-phosphate phosphatase Tps2p dans une levure de bière, en particulier un gène non-ScTPS2 spécifique d'une levure de basse fermentation, ainsi qu'une méthode de production de boissons alcoolisées à l'aide de ladite levure, entre autres.

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