Global pairwise RNA interaction landscapes reveal core features of protein recognition.

Global pairwise RNA interaction landscapes reveal core features of protein recognition.
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DOI:
10.1038/s41467-018-04729-0
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发表时间:
2018-06-28
影响因子:
16.6
通讯作者:
Campbell ZT
Campbell ZT
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Zhou Q;Kunder N;De la Paz JA;Lasley AE;Bhat VD;Morcos F;Campbell ZT

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RNA–protein interactions permeate biology. Transcription, translation, and splicing all hinge on the recognition of structured RNA elements by RNA-binding proteins. Models of RNA–protein interactions are generally limited to short linear motifs and structures because of the vast sequence sampling required to access longer elements. Here, we develop an integrated approach that calculates global pairwise interaction scores from in vitro selection and high-throughput sequencing. We examine four RNA-binding proteins of phage, viral, and human origin. Our approach reveals regulatory motifs, discriminates between regulated and non-regulated RNAs within their native genomic context, and correctly predicts the consequence of mutational events on binding activity. We design binding elements that improve binding activity in cells and infer mutational pathways that reveal permissive versus disruptive evolutionary trajectories between regulated motifs. These coupling landscapes are broadly applicable for the discovery and characterization of protein–RNA recognition at single nucleotide resolution. RNA–protein interactions often depend on the recognition of extended RNA elements but the identification of these motifs is challenging. Here, the authors present a global integrated approach to analyze RNA–protein binding landscapes, mapping extended RNA interaction motifs for four RNA-binding proteins.
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