| 己糖转运蛋白在酿酒酵母生长与酒精发酵中的作用 |
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| 引用本文： | 于斐,吴雪昌.己糖转运蛋白在酿酒酵母生长与酒精发酵中的作用[J].科技通报,2009,25(3). |
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| 作者姓名： | 于斐 吴雪昌 |
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| 作者单位： | 浙江大学,生命科学学院,杭州,310058 |
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| 摘 要： | 酿酒酵母(Saccharomyces cerevisiae)的生长和发酵与其己糖转运蛋白家族紧密相关.酵母己糖转运蛋白家族包括Hxtlp至Hxt17p、Ga12p、以及同源蛋白Snf3p和Rgt2p这两个葡萄糖感应器.其中Hxt1p～Hxt7p对酵母生长及发酵发挥重要作用,缺失这7个蛋白的酵母无法从培养基中摄取己糖进行生长和发酵.根据对己糖的亲和力的不同,这几个转运蛋白可分为低亲和力转运子.包括Hxt1P和Hxt3p;高亲和力转运子,包括Hxt6p和Hxt7p;以及中等亲和力转运子Hxt2p和Hxt4p;而Hxt5p在生长发酵过程中没有发现有任何诱导表达.本文介绍了Hxt1p-Hxt7p等己糖转运蛋白在酵母生长发酵不同阶段中所发挥的作用,以期为构建高乙醇发酵效率的工业酵母菌株提供参考.
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| 关 键 词： | 酿酒酵母 己糖转运基因 己糖亲和力 酒精发酵 |
Roles of Hexose Transporters to the Growth and Alcoholic Fermentation of Saccharomyces cerevisiae |
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| YU Fei,WUXuechang.Roles of Hexose Transporters to the Growth and Alcoholic Fermentation of Saccharomyces cerevisiae[J].Bulletin of Science and Technology,2009,25(3). |
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| Authors: | YU Fei WUXuechang |
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| Institution: | College of Life Science;Zhejiang University;Hangzhou 310058;China |
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| Abstract: | The growth and fermentation of Saccharomyces cerevisiae is close related to its hexose transporter family.The hexose transporter family of S.cerevisiae includes Hxt1p-Hxt17p,Gal2p,and two homologue proteins Snf3p and Rgt2p as glucose sensors.Among these transporters only Hxt1p-Hxt7p are essential for the growth and fermentation,the strain without expression of these 7 transporters has a deficiency in hexose uptake for growth or fermentation.These transporters are classified by their hexose affinities,Hxt1p ... |
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| Keywords: | Saccharomyces cerevisiae hexose transport genes hexose affinities alcoholic fermentation |
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