Evidence map›Paper›PMID 16391113›Full record

ArticleApplied and environmental microbiology2006

Making all parts of the 16S rRNA of Escherichia coli accessible in situ to single DNA oligonucleotides.

L Safak Yilmaz, Hatice E Okten, Daniel R Noguera

Abstract readEvaluation Study
In one paragraph

Article in Applied and environmental microbiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed.

  1. Article
  2. Imaging biofilms using fluorescenceFrontiers in cellular and infection microbiology · 2023
    Review
  3. Article
  4. Article
  5. Application of Nucleic Acid Mimics in Fluorescence In Situ Hybridization.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  6. GAL08, an Uncultivated Group ofFrontiers in microbiology · 2021
    Article
  7. A Multicolor FluorescenceFrontiers in microbiology · 2019
    Article
  8. Article
  9. The Phylogeny, Biodiversity, and Ecology of theFrontiers in microbiology · 2019
    Review
  10. Article
  11. CaMicrobes and environments · 2017
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

3 authors.

L Safak YilmazDepartment of Civil and Environmental Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706-1691, USA.
Hatice E Okten
Daniel R Noguera

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rRNA accessibility is a major sensitivity issue limiting the design of working probes for fluorescence in situ hybridization (FISH). Previous studies empirically highlighted the accessibility of target sites on rRNA maps by grouping probes into six classes according to their brightness levels. In this study, a recently proposed mechanistic model of FISH, based on the thermodynamics of secondary nucleic acid interactions, was used to evaluate the accessibility of the 16S rRNA of Escherichia coli to fluorescein-labeled oligonucleotides when thermodynamic and kinetic barriers were eliminated. To cover the entire 16S rRNA, 109 probes were designed with an average thermodynamic affinity (DeltaGo (overall)) of -13.5 kcal/mol. Fluorescence intensity was measured by flow cytometry, and a brightness threshold between classes 3 and 4 was used as the requirement for proof of accessibility. While 46% of the probes were above this threshold with conventional 3-h hybridizations, extending the incubation period to 96 h dramatically increased the fraction of bright probes to 86%. Insufficient thermodynamic affinity and/or fluorophore quenching was demonstrated to cause the low fluorescence intensity of the remaining 14% of the probes. In the end, it was proven that every nucleotide in the 16S rRNA of E. coli could be targeted with a bright probe and, therefore, that there were no truly inaccessible target regions in the 16S rRNA. Based on our findings and mechanistic modeling, a rational design strategy involving DeltaGo(overall), hybridization kinetics, and fluorophore quenching is recommended for the development of bright probes.

Indexed as

Oligonucleotide ProbesDNA, BacterialDNA, RibosomalEscherichia coliFluorescent DyesIn Situ Hybridization, FluorescenceNucleic Acid ConformationRNA, Ribosomal, 16SThermodynamicsDNA, BacterialDNA, RibosomalFluorescent DyesOligonucleotide ProbesRNA, Ribosomal, 16S

Identifiers

PMID16391113
PMCPMC1352245

What OpenQuestion holds

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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.