Proteome-wide signatures of function in highly diverged intrinsically disordered regions

Proteome-wide signatures of function in highly diverged intrinsically disordered regions
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高度分化的本质无序区域的蛋白质组范围功能特征

DOI:
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发表时间:
2019
期刊:
bioRxiv
影响因子:
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通讯作者:
Alan M. Moses
Alan M. Moses
中科院分区:
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文献类型:
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作者:
Taraneh Zarin;Bob Strome;Alex N. Nguyen Ba;S. Alberti;J. Forman;Alan M. Moses

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本质上无序的区域构成了蛋白质组的很大一部分,但人们对这些区域中的序列与功能的关系知之甚少,部分原因是这些区域的一级氨基酸序列在比对中保守性很差。在这里,我们使用进化方法来检测直系同源本质无序区域的氨基酸序列中保留的分子特征。我们发现大多数无序区域包含保留的多个分子特征,我们将这些特征定义为无序区域的“进化特征”。我们证明,具有相似进化特征的本质无序区域可以挽救体内功能,并且具有相似进化特征的本质无序区域组在功能注释和表型方面得到极大丰富。我们提出,进化特征可用于根据氨基酸序列预测许多无序区域的功能。
Intrinsically disordered regions make up a large part of the proteome, but the sequence-to-function relationship in these regions is poorly understood, in part because the primary amino acid sequences of these regions are poorly conserved in alignments. Here we use an evolutionary approach to detect molecular features that are preserved in the amino acid sequences of orthologous intrinsically disordered regions. We find that most disordered regions contain multiple molecular features that are preserved, and we define these as “evolutionary signatures” of disordered regions. We demonstrate that intrinsically disordered regions with similar evolutionary signatures can rescue function in vivo, and that groups of intrinsically disordered regions with similar evolutionary signatures are strongly enriched for functional annotations and phenotypes. We propose that evolutionary signatures can be used to predict function for many disordered regions from their amino acid sequences.
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