Evidence map›Paper›PMID 20012419›Full record

ArticleMethods in molecular biology (Clifton, N.J.)2010

2-aminopurine as a probe for quadruplex loop structures.

Robert D Gray, Luigi Petraccone, Robert Buscaglia, Jonathan B Chaires

Open access · greenAbstract read
In one paragraph

Article in Methods in molecular biology (Clifton, N.J.), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
5.6field-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

14 citing papers in PubMed, 38 citations in OpenAlex.

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  14. Isothermal folding of G-quadruplexes.Methods (San Diego, Calif.) · 2012
    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

4 authors at 1 institution in 1 country.

Robert D GrayJames Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA.
Luigi Petraccone
Robert Buscaglia
Jonathan B Chaires
University of Louisville · US

Funding

SPECIFICITY OF INTERCALATION REACTIONSR01CA035635 · NCI · UNIVERSITY OF MISSISSIPPI MEDICAL CENTER · PI CHAIRES, JONATHAN B. · 1985 to 2014
$2.0M
NCI NIH HHS CA35635NCI NIH HHS R01 CA035635
6 · The paper itself

Abstract

Fluorescent reporter groups have served for many years as sensitive probes of macromolecular structure. Such probes can be especially useful in comparative studies such as detection of conformational changes and discrimination among structural models. Spectroscopic methods such as fluorescence are attractive because they are rapid, require small amounts of material, are nondestructive, can be carried out with commonly available equipment, and are relatively inexpensive. In addition, there is a rich library of theoretical and practical materials available to aid in data interpretation.The intrinsic fluorescence of most nucleic acids is too low to be useful in structural studies. Thus, it is necessary to incorporate a suitable reporter group to utilize fluorescence methods involving polynucleotide structure. A highly fluorescent adenine analog, 2-aminopurine, has long served in this capacity. The present article describes our use of 2-aminopurine as a probe of loop structures in quadruplex DNA. In particular, we show how knowledge of the relative intensity of 2-aminopurine emission as well as its sensitivity to exogenous quenching molecules such as acrylamide can aid in comparing crystal and solution structures of an oligonucleotide model of the human telomere and in discrimination among models containing tandem repeats of the telomeric quadruplex.

Indexed as

G-Quadruplexes2-AminopurineFluorescenceFluorescent DyesHumansModels, Chemical2-AminopurineFluorescent Dyes

Identifiers

PMID20012419
PMCPMC3008626
OpenAlexW2157544098

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.