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Amyloids or prions? That is the question

机译:淀粉样蛋白或朊病毒? 就是那个问题

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Despite major efforts devoted to understanding the phenomenon of prion transmissibility, it is still poorly understood how this property is encoded in the amino acid sequence. In recent years, experimental data on yeast prion domains allow to start at least partially decrypting the sequence requirements of prion formation. These experiments illustrate the need for intrinsically disordered sequence regions enriched with a particularly high proportion of glutamine and asparagine. Bioinformatic analysis suggests that these regions strike a balance between sufficient amyloid nucleation propensity on the one hand and disorder on the other, which ensures availability of the amyloid prone regions but entropically prevents unwanted nucleation and facilitates brittleness required for propagation.
机译:尽管致力于了解朊病毒传播现象的重大努力,但它仍然明确地理解了这种性质如何在氨基酸序列中编码。 近年来,酵母朊病毒结构域的实验数据允许至少部分地解密朊病毒形成的序列要求。 这些实验说明了需要富含谷氨酰胺和天冬酰胺的特别高的富含富含谷氨酰胺的序列区域。 生物信息分析表明,这些区域在另一只手和另一只手和紊乱的含量均匀核心倾向之间的平衡,这确保了淀粉样蛋白易发区域的可用性,但熵预防不需要的成核并促进繁殖所需的脆性。

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