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基于细胞的新型试验使得基于FRET的测量能够测量伴侣DNAJB6的二分化活性

Anna Gelman¹, Luis Quintino², Manja Nordberg¹

¹Department of Technology, University College Copenhagen, Sigurdsgade 26, Copenhagen, 2200, Denmark.

Biology methods & protocols

|February 20, 2026

概括

研究人员开发了一种新的测定方法来测量DNAJB6蛋白质二分化,这对于其在神经退行性疾病中的伴侣活性至关重要. 这种方法跟踪DNAJB6的踪迹.

科学领域:

分子生物学分子生物学
神经科学是一个神经科学.
生物化学生物化学

背景情况:

DNAJB6是一种伴侣蛋白质,可以抑制粉样蛋白质的聚合,这些蛋白质与神经退行性疾病有关.
据认为DNAJB6的活性取决于其二分化.
测量DNAJB6二分化的方法是必要的,以了解其功能和开发治疗方法.

研究的目的:

设计和验证一种基于细胞的测定方法,用于测量使用光共振能量转移 (FRET) 测量DNAJB6二分化.
建立一个选化合物的平台,调节DNAJB6二元化和潜在的伴侣活动.

主要方法:

设计HEK293细胞以稳定表达DNAJB6与色和黄色光蛋白融合.
采用板式读取器格式来量化表明DNAJB6二元化的FRET信号.
刺激细胞与突尼卡米辛和α-synuclein预先形成的纤维素作为对照.

主要成果:

成功建立了一个基于FRET的测定方法来测量活细胞中的DNAJB6二分化.
观察到与尼卡米辛或α-synuclein纤维激发后,FRET信号显著增加,表明增强的二分化.
证明FRET信号与伴侣活动增加有关.

结论:

这项研究介绍了第一个基于FRET的方法来测量DNAJ蛋白质二分化活性.
开发的基于细胞的测试提供了一个新的实验平台,用于识别DNAJB6二分化调节器.
这项研究可能有助于发现神经退行性疾病的新治疗点.

关键词:

在DNAJB6中使用.费特·弗雷特 (FRET FRET) 是一家在美国的船只.基于细胞的测定.陪伴者的活动.

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