Evidence map›Paper›PMID 12515854›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2003

Photocleavage of a 2-nitrobenzyl linker bridging a fluorophore to the 5' end of DNA.

Xiaopeng Bai, Zengmin Li, Steffen Jockusch, Nicholas J Turro, Jingyue Ju

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Article
  2. Article
  3. Photocleavable Guide crRNAs for a Light-Controllable CRISPR/Cas9 System.International journal of molecular sciences · 2024
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Turning the 10-23 DNAzyme on and off with light.Chembiochem : a European journal of chemical biology · 2010
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. A photocleavable fluorescent nucleotide for DNA sequencing and analysis.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  19. 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

5 authors.

Xiaopeng BaiColumbia Genome Center, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA.
Zengmin Li
Steffen Jockusch
Nicholas J Turro
Jingyue Ju

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Three single-stranded DNA molecules of different lengths were synthesized and characterized, each containing a fluorescent dye (6-carboxyfluorescein) connected to the 5' end via a photocleavable 2-nitrobenzyl linker and a biotin moiety at the 3' end. UV irradiation (lambda approximately 340 nm) of solutions containing these fluorescent DNA molecules caused the complete cleavage of the nitrobenzyl linker, separating the fluorophore from the DNA. The photocleavage products were characterized by HPLC and matrix-assisted laser desorption ionization/time-of-flight mass spectrometry. Our experimental results indicated that the proximity of the chromophore 6-carboxyfluorescein to the 2-nitrobenzyl linker did not hinder the quantitative photocleavage of the linker in the DNA molecules. The biotin moiety allowed immobilization of the fluorescent DNA on streptavidin-coated glass chips. The photocleavage of the immobilized DNA was investigated directly by fluorescence spectroscopy. The results demonstrated that close to 80% of the fluorophore was removed from the immobilized DNA after UV irradiation at 340 nm. These results strongly support the application of the 2-nitrobenzyl moiety as an efficient photocleavable linker, connecting fluorescent probes to DNA molecules for a variety of biological analyses such as DNA sequencing by synthesis.

Indexed as

Fluorescent DyesBiotinChromatography, High Pressure LiquidOligonucleotidesPhotolysisSequence Analysis, DNAUltraviolet RaysBiotinFluorescent DyesOligonucleotides

Identifiers

PMID12515854
PMCPMC141008

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.