黑色素蛋白相互作用取决于酵母的碳代谢
Maria Angeles Morcillo-Parra1,2, Sandra Martín-Esteban1, Joan Almellones1
1Biotecnologia Enológica, Dept. Bioquímica i Biotecnologia, Facultat d'Enologia, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007, Tarragona, Spain.
Scientific reports
|March 16, 2025
概括
黑素在发酵过程中与葡萄酒酵母中的蛋白质相互作用,但不与呼吸相互作用. 这种结合与酵母发酵能力有关,并可能调节葡萄糖代谢.
科学领域:
- * 生物化学和分子生物学
- *酵母生理学和新陈代谢
- * 食品微生物学 食品微生物学
背景情况:
- * Melatonin 是一种生物活性的胺,以其抗氧化特性而闻名.
- * 它在酵母中的作用,特别是在发酵过程中,尚未完全理解.
- *了解黑激素的相互作用对于优化葡萄酒生产至关重要.
研究的目的:
- *分析各种葡萄酵母物种的细胞内黑色素水平和蛋白质相互作用.
- * 为了确定黑激素与蛋白质的结合是否与特定的碳代谢途径相关.
- * 调查黑激素在酒精发酵中的作用与呼吸.
主要方法:
- * 通过液体染色学质谱学量化细胞内黑色素的量化.
- * 在不同的酵母生长阶段对黑激素结合蛋白的免疫净化.
- *对Saccharomyces和非Saccharomyces酵母菌种进行比较分析.
主要成果:
- *细胞内黑色素在滞后期达到峰值,在所有物种的后期生长阶段下降.
- * 氨酸与蛋白质的结合仅发生在酒精发酵过程中的强发酵酵母中.
- *在细胞呼吸过程中和一些非Saccharomyces酵母中缺乏结合,但发酵能力较差.
结论:
- * 已经确定了酵母碳代谢和黑激素-蛋白相互作用之间的新联系.
- *黑素可能在酵母糖代谢中起着调节作用,类似于它在人体细胞中的功能.
- * Melatonin与蛋白质的结合是葡萄酒酵母的发酵能力的特征.
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