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测量蛋白质-RNA结合的协议使用双过结合试验,然后进行光成像或高通量测序

Joel Vega-Badillo¹, Phillip D Zamore², Karina Jouravleva¹

¹RNA Therapeutics Institute, University of Massachusetts Chan Medical School, 368 Plantation Street, Worcester, MA 01605, USA.

|June 4, 2023

概括

这项研究详细介绍了一种方法来测量使用双波器结合的微RNA载荷阿尔戈诺2蛋白结合亲和力 (KD). 该协议可以适应各种RNA和DNA结合蛋白.

科学领域:

分子生物学分子生物学
生物化学生物化学
遗传学遗传学是一个

背景情况:

结合亲和度量化了分子相互作用的强度,通常被称为平衡解离常数 (KD).
准确测量KD对于理解生物系统中的蛋白质-RNA相互作用至关重要.

研究的目的:

介绍一项详细的方案,用于测量哺乳动物微RNA加载的Argonaute2蛋白的结合亲和力 (KD).
提供一种适用于其他RNA和DNA结合蛋白的方法.

主要方法:

双过结合试验被用来测量结合亲和力.
关键步骤包括放射性标记目标RNA,确定结合对应蛋白度,建立结合反应,分离结合和未结合的RNA,为Illumina测序准备库,以及数据分析.

主要成果:

建立了一个强大的协议,用于测量微RNA载荷阿尔戈诺2蛋白的KD.
协议的步骤清楚地划出了可复制性的界限.

结论:

提出的双过结合协议提供了一种可靠的方法来量化微RNA载荷的Argonaute2.2的结合亲和力.
这种方法非常通用,可以适应各种RNA和DNA结合蛋白,促进分子相互作用的更广泛的研究.

关键词:

分子生物学分子生物学蛋白质生物化学蛋白质生物化学

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