Evidence map›Paper›PMID 19907676›Full record

ArticleTetrahedron2007

Design and characterization of two-dye and three-dye binary fluorescent probes for mRNA detection.

Angel A Martí, Xiaoxu Li, Steffen Jockusch, Nathan Stevens, Zengmin Li, Bindu Raveendra, Sergey Kalachikov, Irina Morozova, James J Russo, Daniel L Akins and 2 more

Abstract read
In one paragraph

Article in Tetrahedron, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Fluorescent hybridization probes for nucleic acid detection.Analytical and bioanalytical chemistry · 2012
    Review
  8. Review
  9. Nucleic acid-based fluorescent probes and their analytical potential.Analytical and bioanalytical chemistry · 2011
    Review
  10. Review
  11. Article
  12. 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

12 authors.

Angel A MartíDepartment of Chemistry, Columbia University, New York, NY, 10027.
Xiaoxu Li
Steffen Jockusch
Nathan Stevens
Zengmin Li
Bindu Raveendra
Sergey Kalachikov
Irina Morozova
James J Russo
Daniel L Akins
Jingyue Ju
Nicholas J Turro

Funding

Genomic Approaches to Neuronal Diversity and PlasticityP50HG002806 · NHGRI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI JU, JINGYUE · 2003 to 2007
$13.9M
Molecular Engineering Approach to Study Long Term Synaptic PlasticityR01NS060762 · NINDS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI JU, JINGYUE · 2008 to 2011
$2.3M
NHGRI NIH HHS P50 HG002806NINDS NIH HHS R01 NS060762
6 · The paper itself

Abstract

We report the design, synthesis and characterization of binary oligonucleotide probes for mRNA detection. The probes were designed to avoid common problems found in standard binary probes such as direct excitation of the acceptor fluorophore and overlap between the donor and acceptor emission spectra. Two different probes were constructed that contained an array of either two or three dyes and that were characterized using steady-state fluorescence spectroscopy, time-resolved fluorescence spectroscopy and fluorescence depolarization measurements. The three-dye binary probe (BP-3d) consists of a Fam fluorophore which acts as a donor, collecting light and transferring it as energy to Tamra, which subsequently transfers energy to Cy5 when the two probes are hybridized to mRNA. This design allows the use of 488 nm excitation, which avoids the direct excitation of Cy5 and at the same time provides a good fluorescence resonance energy transfer (FRET) efficiency. The two-dye binary probe system (BP-2d) was constructed of Alexa488 and Cy5 fluorophores. Although the overlap between the fluorescence of Alexa488 and the absorption of Cy5 is relatively low, FRET still occurs due to their close physical proximity when the probes are hybridized to mRNA. This framework also decreases the direct excitation of Cy5 and reduces the fluorescence overlap between the donor and the acceptor. Picosecond time-resolved spectroscopy showed a reduction in the fluorescence lifetime of donor fluorophores after the formation of the hybrid between the probes and target mRNA. Interestingly, BP-2d in the presence of mRNA shows a slow rise in the fluorescence decay of Cy5 due to a relatively low FRET rate, which together with the reduction in the Alexa488 lifetime provides a way to improve the signal to background ratio using time-resolved fluorescence spectra (TRES). In addition, fluorescence depolarization measurements showed complete depolarization of the acceptor dyes (Cy5) for both BP-3d (due to sequential FRET steps) and BP-2d (due to the relatively low FRET rate) in the presence of the mRNA target.

Identifiers

PMID19907676
PMCPMC2775546

What OpenQuestion holds

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Registered trials

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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.