Determinants of selectivity in the dicing mechanism

Thi Nhu-Y Le, Cong Truc Le and Tuan Anh Nguyen ()
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Thi Nhu-Y Le: The Hong Kong University of Science & Technology
Cong Truc Le: The Hong Kong University of Science & Technology
Tuan Anh Nguyen: The Hong Kong University of Science & Technology

Nature Communications, 2024, vol. 15, issue 1, 1-16

Abstract: Abstract Our research elucidates the cleavage processes of the RNase III enzyme, DICER, which plays a crucial role in the production of small RNAs, such as microRNAs (miRNAs) and small interfering RNAs (siRNAs). Utilizing high-throughput dicing assays, we expose the bipartite pairing rule that dictates the cleavage sites of DICER. Furthermore, we decode the intricate recognition mechanism of the primary YCR motif and identify an analogous secondary YCR motif that influences DICER's cleavage choices. Collectively, our findings clarify the bipartite pairing rule and enhance our understanding of the role of RNA motifs in modulating DICER's cleavage activity, laying the groundwork for future research on their roles in miRNA biogenesis and gene regulation.

Date: 2024
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DOI: 10.1038/s41467-024-53322-1

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