Cited by 163RNA Interference and Gene DeliveryCRISPR and Genetic EngineeringRNA regulation and disease

High-Throughput Analysis Reveals Rules for Target RNA Binding and Cleavage by AGO2

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Becker, Winston R., Ober-Reynolds, Benjamin, Jouravleva, Karina, Jolly, Samson M., Zamore, Phillip D., Greenleaf, William J.·2019·Molecular Cell

Abstract

Argonaute proteins loaded with microRNAs (miRNAs) or small interfering RNAs (siRNAs) form the RNA-induced silencing complex (RISC), which represses target RNA expression. Predicting the biological targets, specificity, and efficiency of both miRNAs and siRNAs has been hamstrung by an incomplete understanding of the sequence determinants of RISC binding and cleavage. We applied high-throughput methods to measure the association kinetics, equilibrium binding energies, and single-turnover cleavage rates of mouse AGO2 RISC. We find that RISC readily tolerates insertions of up to 7 nt in its target opposite the central region of the guide. Our data uncover specific guide:target mismatches that enhance the rate of target cleavage, suggesting novel siRNA design strategies. Using these data, we derive quantitative models for RISC binding and target cleavage and show that our in vitro measurements and models predict knockdown in an engineered cellular system.

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Crossref · 10.1016/j.molcel.2019.06.012

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  • Recent efforts have shown success at identifying candidate miRNA target sites in vitro using purified RISC complex pre-loaded with a miRNA of interest, followed by high-throughput RNA binding assays.

    “Recent efforts have shown success at identifying candidate miRNA target sites in vitro using purified RISC complex pre-loaded with a miRNA of interest, followed by highthroughput RNA binding assays (Becker et al., 2019;McGeary et al., 2019).”
  • Recent work performing in vitro RNA binding assays using pre-formed miRNA-loaded Argonaute complexes has shown that these complexes readily bind RNA with similar targeting principles as in vivo-identified miRNA targets.

    “However, recent work performing in vitro RNA binding assays using pre-formed miRNA-loaded Argonaute complexes has shown that these complexes readily bind RNA with similar targeting principles as in vivo-identified miRNA targets (Becker et al., 2019;McGeary et al., 2019)”

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Research works printed but not linked: 1

  1. Zamore PD, Tuschl T, Sharp PA, and Bartel DP (2000). RNAi: double-stranded RNA directs the ATP-dependent cleavage of mRNA at 21 to 23 nucleotide intervals. Cell 101, 25– 33. 10778853

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Authors
Becker, W. R., Ober-Reynolds, B., Jouravleva, K., Jolly, S. M., Zamore, P. D., & Greenleaf, W. J.
Affiliations
  • Stanford University (US)
  • Howard Hughes Medical Institute (US)
  • Chan Zuckerberg Biohub San Francisco (US)
Corresponding author
  • Zamore, Phillip D.
  • Greenleaf, William J.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2019-08
Volume
75
Issue
4
Pages
741-755.e11
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2957005848
Cited by
161
References
76
Citations by year
2026: 24 · 2025: 24 · 2024: 17 · 2023: 26 · 2022: 31 · 2021: 15 · 2020: 15 · 2019: 9
FWCI
5.95
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (P01HD078253, GM65236, R01GM111990, P01GM066275, P50HG007735, UM1HG009436, R01HG009909, R01GM121487, T32GM007365)
  • Alnylam Pharmaceuticals
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
Keywords
Argonaute 2, RNA-induced silencing complex, microRNA, siRNA, binding kinetics, siRNA design, RNA interference
MeSH terms
Animals, Models, Chemical, RNA, Small Interfering, RNA-Induced Silencing Complex, Mice, Argonaute Proteins

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