2011
DOI: 10.1002/chem.201002426
|View full text |Cite
|
Sign up to set email alerts
|

Two Successive Reactions on a DNA Template: A Strategy for Improving Background Fluorescence and Specificity in Nucleic Acid Detection

Abstract: We report a new strategy for template-mediated fluorogenic chemistry that results in enhanced performance for the fluorescence detection of nucleic acids. In this approach, two successive templated reactions are required to induce a fluorescence signal, rather than only one. These novel fluorescein-labeled oligonucleotide probes, termed 2-STAR probes, contain two quencher groups tethered by separate reductively cleavable linkers. When a 2-STAR quenched probe binds adjacent to either two successive mono triphen… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

0
37
0
3

Year Published

2011
2011
2017
2017

Publication Types

Select...
4
2
2

Relationship

2
6

Authors

Journals

citations
Cited by 45 publications
(40 citation statements)
references
References 47 publications
0
37
0
3
Order By: Relevance
“…The QUAL reaction exhibits moderate reaction rates that may be increased by using stronger nucleophiles such as phosphorotrithioates 45 or by fine-tuning the leaving group ability. Furthermore, by employing doubly quenched QSTAR-DNA probe designs, 35 the background signal can likely be reduced, which is expected to increase the limit of detection of FACTR yet further.…”
Section: Discussionmentioning
confidence: 99%
“…The QUAL reaction exhibits moderate reaction rates that may be increased by using stronger nucleophiles such as phosphorotrithioates 45 or by fine-tuning the leaving group ability. Furthermore, by employing doubly quenched QSTAR-DNA probe designs, 35 the background signal can likely be reduced, which is expected to increase the limit of detection of FACTR yet further.…”
Section: Discussionmentioning
confidence: 99%
“…[16] Die templatgesteuerte Wittig-Reaktion verläuft mit geringer Hintergrundgeschwindigkeit und ermçglicht das Auslesen der Fluoreszenzsignale binnen Minuten. Dieses System stellt nach unserem Kenntnisstand die erste DNAkontrollierte Reaktion dar, bei der eine katalytische Denovo-Synthese eines Fluoreszenzfarbstoffs gelingt.…”
unclassified
“…This concept was further elaborated in the design of 2‐STAR probes containing two quencher groups tethered again by azide‐based linkers to a DNA strand. In this case, the fluorescence was released only after a two‐step mechanism, which was demonstrated to be effective for decreasing auto‐fluorescence background, but also compromised sequence discrimination …”
Section: Uncaging Of Smart Probes For Nucleic Acid Imagingmentioning
confidence: 99%
“…In this case, the fluorescencew as released only after at wo-stepm echanism, which was demonstrated to be effective for decreasing auto-fluorescence background,b ut also compromised sequence discrimination. [38] Very recently,V elema and Kool developed another two-step mechanism based on aq uenched autoligation (QUAL) [36a, 39] / QSTAR-templated reactionc ascade. Upon recognition of atarget, the phosphorothioate hanging from aQUAL probe attacks the electrophilic carbon atom of ab utyl linker conveniently modified with aleaving group, yieldingthe ligatedoligonucleotides tethered by ab utyl linker.T he newly ligated strand spontaneously dissociates from the former target and acts as template itself, instructing the Staudinger reaction be- tween two QSTAR probes.…”
Section: Staudinger-triggered Release Of Fluorescencementioning
confidence: 99%