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首页> 外文期刊>Methods: A Companion to Methods in Enzymology >NMR methods to dissect the molecular mechanisms of disease-related mutations (DRMs): Understanding how DRMs remodel functional free energy landscapes
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NMR methods to dissect the molecular mechanisms of disease-related mutations (DRMs): Understanding how DRMs remodel functional free energy landscapes

机译:对疾病相关突变的分子机制(DRMS)进行描述的NMR方法:了解DRMS改造功能自由能景观

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摘要

Elucidating the molecular mechanism of disease-related mutations (DRMs) is a critical first step towards understanding the etiology of genetic disorders. DRMs often modulate biological function by altering the free-energy landscape (FEL) of the protein associated with the mutated gene. FELs typically include ground, as well as excited, yet accessible and functionally relevant, states and DRMs may perturb both the thermodynamics and kinetics of the groundvs. excited and apovs.holo transitions. NMR is ideally suited to map at atomic-resolution these DRM-induced FEL perturbations. Here, we discuss NMR methods that can elucidate how DRMs remodel regulatory FELs by focusing on a simple, but prototypical, four-state allosteric FEL model. The approaches include the CHEmical Shift Projection Analysis, NMR spin relaxation measurements, and NMR measurements of effector-binding thermodynamics and kinetics. Together, these complementary NMR measurements provide a valuable picture of how DRMs modulate distinct FEL attributes that are critical for dissecting the molecular mechanisms underlying pathological phenotypes.
机译:阐明疾病相关突变(DRM)的分子机制是了解遗传疾病病因的关键第一步。 DRMS通常通过改变与突变基因相关的蛋白质的自由能景观(FEL)来调节生物学功能。 FEL通常包括地面,以及兴奋,但可访问且功能相关的,状态和DRM可能会扰乱地面的热力学和动力学。兴奋和Apovs.holo过渡。 NMR理想地适用于以原子分辨率映射这些DRM诱导的FEL扰动。在这里,我们讨论了可以通过专注于简单但原型的四态变振型型模型来阐明DRMS改造调节纤维的NMR方法。该方法包括化学移位投影分析,NMR旋转弛豫测量和效应结合热力学和动力学的NMR测量。这些互补的NMR测量结果提供了DRMS如何调制不同的FEL属性的宝贵图片,这些属性对于解剖病理表型下面的分子机制至关重要。

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