Evidence map›Paper›PMID 20863128›Full record

ArticleACS chemical biology2010

Minor-groove-modulating adenosine replacements control protein binding and RNAi activity in siRNAs.

Hayden Peacock, Erik Fostvedt, Peter A Beal

Abstract read
In one paragraph

Article in ACS chemical biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.6field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
  2. Therapeutic siRNA: state of the art.Signal transduction and targeted therapy · 2020
    Review
  3. Article
  4. Article
  5. Base modification strategies to modulate immune stimulation by an siRNA.Chembiochem : a European journal of chemical biology · 2015
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Novel modifications in RNA.ACS chemical biology · 2012
    Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Hayden PeacockDepartment of Chemistry, University of California, Davis, 95616, United States.
Erik Fostvedt
Peter A Beal
University of California, Davis · US

Funding

Nucleobase analogs for next generation siRNAsR01GM080784 · NIGMS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI BEAL, PETER A. · 2007 to 2020
$3.5M
NIGMS NIH HHS R01 GM080784NIGMS NIH HHS R01-GM080784
6 · The paper itself

Abstract

Short-interfering RNAs (siRNAs) are common tools in molecular biology; however, the development of RNAi-based therapeutics is limited by immunostimulatory and nonspecific effects mediated by off-target RNA-binding proteins. The RNA-dependent protein kinase (PKR) and adenosine deaminase that acts on RNA 1 (ADAR1) are two proteins implicated in RNAi off-target effects and share a common means of interaction with siRNAs through double-stranded RNA binding motifs (dsRBMs). Here we report the site-specific introduction of N²-propargyl 2-aminopurine into siRNAs and subsequent conversion to two bulky products via copper-catalyzed azide alkyne cycloaddition (CuAAC) with either N-azidoacetyl-mannosamine azide or N-ethylpiperidine azide. We observed position-specific effects on RNAi activity for modifications made to both the passenger and guide strands. These findings are rationalized in light of recent structural studies of components of the RNA-induced silencing complex (RISC) and RISC-loading complex (RLC). The most active siRNAs were assayed for binding affinity to PKR and ADAR1. PKR binding was significantly reduced by multiple modifications, regardless of size, and ADAR1 binding was reduced in a position- and size-sensitive manner. Our findings present a strategy for designing siRNAs that reduce off-target dsRBM-protein binding while retaining native RNAi activity.

Indexed as

RNA InterferenceAdenosineAdenosine DeaminaseBacterial ProteinsCell Line, TumoreIF-2 KinaseHumansMolecular StructureProteinsRNA, Small InterferingThermus thermophilusAdenosineAdenosine DeaminaseBacterial ProteinseIF-2 KinaseProteinsRNA, Small Interfering

Identifiers

PMID20863128
PMCPMC3003776
OpenAlexW2089962897

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.