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Optical Tweezers to Study RNA-Protein Interactions in Translation Regulation
Published on: February 12, 2022
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Deciphering the role of RNA structure in translation efficiency.
Jianan Lin1,2, Yang Chen1, Yuping Zhang3,4,5
1Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, 715 North Pleasant Street, Amherst, MA, 01003, USA.
BMC Bioinformatics
|December 23, 2022
Summary
Investigating RNA structure
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- RNA secondary structure significantly impacts RNA metabolism and translation efficiency.
- Reduced secondary structure stability near start codons enhances translation.
- Current understanding is limited by in silico folding inaccuracies and focus on coding regions.
Purpose of the Study:
- To systematically investigate the role of whole mRNA structure in regulating translation efficiency using high-throughput RNA structure probing data.
- To compare the influence of in vitro and in vivo RNA structures on translation efficiency across different cellular and developmental contexts.
Main Methods:
- Analysis of sequence and structural features influencing translation efficiency in mouse embryonic stem cells (mESCs) and zebrafish.
- Utilizing high-throughput RNA structure probing data to assess in vivo RNA structures.
- Comparing in vitro and in vivo RNA structures in relation to translation efficiency.
Main Results:
- In vivo RNA structure is more predictive of translation efficiency than in vitro structure in both mESCs and zebrafish.
- RNA structures in the 3' untranslated region (UTR) have a greater influence on translation efficiency than those in coding or 5' UTRs.
- Differential alternation patterns between in vitro and in vivo structures in 3' UTRs and 5' UTRs/proximal coding regions were observed in highly translated mRNAs in mESCs and zebrafish, respectively.
Conclusions:
- Openness of the 3' UTR promotes translation efficiency in both mice and zebrafish.
- In vivo RNA structure in the 3' UTR plays a more critical role in mice than in zebrafish.
- Reveals a novel role for RNA secondary structure in translational regulation.
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