Evidence map›Paper›PMID 30660935›Full record

ArticleBiophysical chemistry2019

Contribution of 3'T and 3'TT overhangs to the thermodynamic stability of model siRNA duplexes.

Jolanta Lisowiec-Wachnicka, Brent M Znosko, Anna Pasternak

Abstract read
In one paragraph

Article in Biophysical chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Jolanta Lisowiec-WachnickaInstitute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704 Poznań, Poland.
Brent M ZnoskoSaint Louis University, 3501 Laclede Ave., St. Louis, MO 63103-2010, United States.
Anna PasternakInstitute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704 Poznań, Poland. Electronic address: apa@ibch.poznan.pl.

Funding

Understanding the Thermodynamics and Structure of RNA Secondary Structure MotifsR15GM085699 · NIGMS · SAINT LOUIS UNIVERSITY · PI ZNOSKO, BRENT · 2009 to 2025
$2.0M
NIGMS NIH HHS R15 GM085699
6 · The paper itself

Abstract

Herein, we report comprehensive thermodynamic studies on 36 RNA/DNA duplexes designed as siRNA mimics to determine the energetic contribution of 3'T and 3'TT dangling ends. The thermodynamic effect induced by the presence of 3'T overhangs on the stability of RNA duplexes ranges from -0.28 to -0.92 kcal/mol and strongly depends on the type and orientation of the adjacent base pair. Further extension of the 3'-dangling end length, by a second T residue, results in additional stabilization of 0.14 to 0.21 kcal/mol. The results revealed that the thermodynamic contribution of 3'-dangling T and TT on RNA duplexes differs from the influence of 3'-dangling U and UU on RNA duplexes and 3'-dangling T and TT on DNA duplexes. This data suggests that using the contribution of 3'-dangling T values for RNA duplexes, instead of 3'-dangling T values for DNA duplexes or 3'-dangling U values for RNA duplexes, would improve the prediction of the stability of siRNA duplexes.

Indexed as

RNA StabilityThermodynamics3' Untranslated RegionsBase PairingModels, MolecularNucleic Acid ConformationRNA, Double-StrandedRNA, Small InterferingThymidineUracil3' Untranslated RegionsRNA, Double-StrandedRNA, Small InterferingThymidineUracil3′-dangling endsDNARISC selectionRNAsiRNAThermodynamics

Identifiers

PMID30660935
PMCPMC6386172

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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.