Evidence map›Paper›PMID 19187762›Full record

ArticleMolecular cell2009

Enhancement of the seed-target recognition step in RNA silencing by a PIWI/MID domain protein.

James S Parker, Eneida A Parizotto, Muhan Wang, S Mark Roe, David Barford

Open access · hybridAbstract read
In one paragraph

Article in Molecular cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

87 citing papers in PubMed, 160 citations in OpenAlex.

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  12. Insights in piRNA targeting rules.Wiley interdisciplinary reviews. RNA · 2023
    Article
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  17. 3D Modeling of Non-coding RNA Interactions.Advances in experimental medicine and biology · 2022
    Article
  18. Article
  19. Article
  20. Review

27 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

James S ParkerInstitute of Cancer Research, Chester Beatty Laboratories, London, UK. james.parker@bioch.ox.ac.uk
Eneida A Parizotto
Muhan Wang
S Mark Roe
David Barford
University of Oxford · GBInstitute of Cancer Research · GB

Funding

Cancer Research UKMedical Research Council G0600097Wellcome Trust
6 · The paper itself

Abstract

Target recognition in RNA silencing is governed by the "seed sequence" of a guide RNA strand associated with the PIWI/MID domain of an Argonaute protein in RISC. Using a reconstituted in vitro target recognition system, we show that a model PIWI/MID domain protein confers position-dependent tightening and loosening of guide-strand-target interactions. Over the seed sequence, the interaction affinity is enhanced up to approximately 300-fold. Enhancement is achieved through a reduced entropy penalty for the interaction. In contrast, interactions 3' of the seed are inhibited. We quantified mismatched target recognition inside and outside the seed, revealing amplified discrimination at the third position in the seed mediated by the PIWI/MID domain. Thus, association of the guide strand with the PIWI/MID domain generates an enhanced affinity anchor site over the seed that can promote fidelity in target recognition and stabilize and guide the assembly of the active silencing complex.

Indexed as

Archaeal ProteinsArchaeoglobus fulgidusBinding SitesEntropyModels, BiologicalModels, MolecularProtein ConformationProtein Structure, TertiaryRNA, ArchaealRNA InterferenceRNA, Small UntranslatedArchaeal ProteinsRNA, ArchaealRNA, Small Untranslated

Identifiers

PMID19187762
PMCPMC2642989
OpenAlexW1982907791

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.