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阶段分离是解释疾病突变的缺失机制

Brian Tsang¹, Iva Pritišanac², Stephen W Scherer³

¹Program in Molecular Medicine, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A8, Canada.

|December 28, 2020

概括

本质上无序的蛋白区域 (IDR) 的疾病突变可能通过改变生物分子相分离来破坏关键的细胞过程. 这可以解释自闭症谱系障碍 (ASD) 和癌症等复杂疾病的遗传贡献.

科学领域:

生物化学
遗传学
细胞生物学

背景情况:

内在无序的蛋白质区域 (IDR) 缺乏稳定的结构,并且它们中的突变在疾病中很常见,但往往不太了解.
生物分子相分离,一个涉及IDR的过程,对于细胞组织和调节至关重要.

研究的目的:

研究疾病相关突变对IDR的影响及其在生物分子相分离中的作用.
探索IDR突变,相分离中断以及自闭症谱系障碍 (ASD) 和癌症等复杂疾病之间的潜在联系.

主要方法:

分析蛋白序列以预测相分离倾向.
检查与自闭症和癌症相关的蛋白质,以检查其相分离特征.

主要成果:

与自闭症和癌症相关的蛋白质更容易分离.
这表明IDR中的突变可能会破坏关键细胞功能的相分离.

结论:

IDR中的突变可以显著影响生物分子相分离,影响细胞过程.
微妙的IDR突变的组合可能会导致复杂疾病易感性所观察到的"遗传性缺失".

关键词:

阶段分离自闭症谱系障碍生物分子凝聚物癌症本质性疾病内在无序的蛋白质区域神经发育

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