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Updated: Jul 11, 2025

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在葡萄酒发酵模型下,PKA-Msn2/4-Shy1级联控制抑制了林利用

Akira Nishimura¹, Ryoya Tanahashi², Hayate Nakazawa³

¹Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan; Institute for Research Initiatives, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.

Journal of bioscience and bioengineering

|November 8, 2023

概括

这项研究确定了PKA-Msn2/4-Shy1通路作为酵母菌的关键.

科学领域:

*酵母遗传学和分子生物学
* 食品科学和葡萄酒学

背景情况:

* 氨酸是葡萄酒中的关键氨基酸,影响味道和风味.
*Saccharomyces cerevisiae酵母在葡萄酒制作过程中不善利用普罗林,导致葡萄酒中缺和普罗林的积累.
* 蛋白激酶A (PKA) 途径与抑制林利用有关.

研究的目的:

*用于选PKA通路相关的基因,这些基因调节了Saccharomyces cerevisiae中的proline利用率.
* 阐明葡萄酒中林积累背后的分子机制.
* 确定开发酵母菌株的标,以提高素消耗.

主要方法:

* 对酵母培养组的查,发现与PKA通路相关的基因受损.
*下游PKA级联基因的分析,包括转录因子和SHY1.
*使用一种葡萄酒发酵模型,使用商用葡萄酒酵母菌株.

主要成果:

* 压力反应转录因子MSN2和MSN4被确定为普罗林利用的调节者.
* 发现msn2/4可以对SHY1基因进行上调,从而抑制酵母生长期间的林利用.
* 在商用葡萄酵母菌株中删除SHY1导致了显著的普罗林消耗和正常的乙醇生产.

结论:

* PKA-Msn2/4-Shy1信号级联控制葡萄酒制作中的林利用抑制.
* 针对这种途径提供了一种改善酵母蛋白质代谢的策略.
* 这项研究为开发葡萄酒酵母铺平了道路,这些酵母在发酵过程中有效地降低了proline.

关键词:

在 Msn2/4/4 中.烯的利用方法蛋白激酶A是一种蛋白质激酶.这种植物是Saccharomyces cerevisiae.羞怯的人羞怯的人葡萄酒发酵葡萄酒的发酵

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