Evidence map›Paper›PMID 21893589›Full record

ArticleNucleic acids research2011

Cation binding to 15-TBA quadruplex DNA is a multiple-pathway cation-dependent process.

Roman V Reshetnikov, Jiri Sponer, Olga I Rassokhina, Alexei M Kopylov, Philipp O Tsvetkov, Alexander A Makarov, Andrey V Golovin

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

29 citing papers in PubMed, 70 citations in OpenAlex.

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  8. Quantifying MgPolymers · 2018
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  11. Advances in the development of aptamer drug conjugates for targeted drug delivery.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology · 2017
    Review
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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

7 authors at 3 institutions in 2 countries.

Roman V ReshetnikovDepartment of Boiengineering and Bioinformatics, Lomonosov Moscow State University, GSP-1, Leninskie Gory, Moscow, 119991, Russian Federation.
Jiri Sponer
Olga I Rassokhina
Alexei M Kopylov
Philipp O Tsvetkov
Alexander A Makarov
Andrey V Golovin
Czech Academy of Sciences · CZLomonosov Moscow State University · RUEngelhardt Institute of Molecular Biology · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A combination of explicit solvent molecular dynamics simulation (30 simulations reaching 4 µs in total), hybrid quantum mechanics/molecular mechanics approach and isothermal titration calorimetry was used to investigate the atomistic picture of ion binding to 15-mer thrombin-binding quadruplex DNA (G-DNA) aptamer. Binding of ions to G-DNA is complex multiple pathway process, which is strongly affected by the type of the cation. The individual ion-binding events are substantially modulated by the connecting loops of the aptamer, which play several roles. They stabilize the molecule during time periods when the bound ions are not present, they modulate the route of the ion into the stem and they also stabilize the internal ions by closing the gates through which the ions enter the quadruplex. Using our extensive simulations, we for the first time observed full spontaneous exchange of internal cation between quadruplex molecule and bulk solvent at atomistic resolution. The simulation suggests that expulsion of the internally bound ion is correlated with initial binding of the incoming ion. The incoming ion then readily replaces the bound ion while minimizing any destabilization of the solute molecule during the exchange.

Indexed as

G-QuadruplexesAptamers, NucleotideCalorimetryCationsDNAMolecular Dynamics SimulationPotassiumSodiumAptamers, NucleotideCationsDNAPotassiumSodiumthrombin aptamer

Identifiers

PMID21893589
PMCPMC3239185
OpenAlexW1984760060

What OpenQuestion holds

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LicenceCC BY-NC
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.