ArticleJournal of nucleic acids2011
Direct detection of thrombin binding to 8-bromodeoxyguanosine-modified aptamer: effects of modification on affinity and kinetics.
Article in Journal of nucleic acids, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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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.
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.
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Who cites it
8 citing papers in PubMed, 21 citations in OpenAlex.
- Probing the Effects of Chemical Modifications on Anticoagulant and Antiproliferative Activity of Thrombin Binding Aptamer.International journal of molecular sciences · 2024Article
- Improving the Biological Properties of Thrombin-Binding Aptamer by Incorporation of 8-Bromo-2'-Deoxyguanosine and 2'-Substituted RNA Analogues.International journal of molecular sciences · 2023Article
- Beyond G-Quadruplexes-The Effect of Junction with Additional Structural Motifs on Aptamers Properties.International journal of molecular sciences · 2021Review
- Recognition Interface of the Thrombin Binding Aptamer Requires Antiparallel Topology of the Quadruplex Core.Biomolecules · 2021Article
- Modular protein-oligonucleotide signal exchange.Nucleic acids research · 2020Article
- G-Quadruplex-Forming Aptamers-Characteristics, Applications, and Perspectives.Molecules (Basel, Switzerland) · 2019Review
- In What Ways Do Synthetic Nucleotides and Natural Base Lesions Alter the Structural Stability of G-Quadruplex Nucleic Acids?Journal of nucleic acids · 2017Review
- Aptasensors Based on Whispering Gallery Mode Resonators.Biosensors · 2016Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The affinity of an 8-bromodeoxyguanosine- (8-BrdG-) substituted thrombin-binding aptamer (TBA-Br), which has the 1st and 10th guanosine residues replaced with 8-BrdG, was estimated using reflectometric interference spectroscopy (RIfS). When comparing TBA-Br with unmodified TBA (TBA-H), it was demonstrated that the modification effectively improved the affinity of TBA; dissociation constants (K(D)) of TBA-H and TBA-Br were 45.4 nM and 1.99 nM, respectively. These values, which were obtained by direct observation of thrombin binding using RIfS, have the same order of magnitude as those obtained in our previous study utilizing conformational changes in TBA to detect thrombin binding, thus confirming the validity of the obtained K(D) values. RIfS measurements also revealed that the 8-BrdG modification resulted in a lower dissociation rate constant (k(d)), which suggests that the enhancement of affinity can be attributed to the stabilization of the G-quadruplex structure on introduction of 8-BrdG.
Identifiers
What OpenQuestion holds
Registered trials
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.