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Novel RNA-Binding Proteins Isolation by the RaPID Methodology
Published on: September 30, 2016
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A large-scale binding and functional map of human RNA-binding proteins.
Eric L Van Nostrand1,2, Peter Freese3, Gabriel A Pratt1,2,4
1Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA, USA.
Nature
|July 31, 2020
Summary
Researchers mapped RNA elements recognized by RNA-binding proteins (RBPs) in the human genome. This study identifies new functional elements controlling gene expression post-transcriptionally.
Area of Science:
- Genomics
- Molecular Biology
- Transcriptomics
Background:
- Gene expression is regulated by proteins binding to genomic regions.
- RNA-binding proteins (RBPs) control crucial post-transcriptional processes.
- Functional elements acting at the RNA level are increasingly recognized.
Purpose of the Study:
- To map and characterize RNA elements recognized by RBPs in the human genome.
- To generate a comprehensive dataset of RBP binding sites on RNA.
- To understand the role of these RNA elements in gene regulation.
Main Methods:
- Utilized five integrated assays to identify RBP binding sites in vivo and in vitro.
- Analyzed RBP binding preferences, function, and subcellular localization.
- Generated 1,223 replicated datasets for 356 human RBPs.
Main Results:
- Identified and mapped a large set of RNA elements bound by RBPs across the human transcriptome.
- Characterized RBP binding sites in K562 and HepG2 cells.
- Linked RBP interactions to RNA stability, splicing regulation, and RNA localization.
Conclusions:
- This study adds a significant set of RNA-level functional elements to the human genome catalog.
- The findings reveal the extensive role of RBPs in post-transcriptional gene regulation.
- The data provides a foundation for understanding RNA-centric gene control mechanisms.
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