Results 31 to 40 of about 19,280 (250)

Expanding the recognition interface of the thrombin-binding aptamer HD1 through modification of residues T3 and T12

open access: yesMolecular Therapy: Nucleic Acids, 2021
Post-SELEX modification of DNA aptamers is an established strategy to improve their affinity or inhibitory characteristics. In this study, we examined the possibility of increasing the recognition interface between the thrombin-binding aptamer HD1 (TBA ...
Igor Smirnov   +4 more
doaj   +1 more source

Model-guided design of ligand-regulated RNAi for programmable control of gene expression [PDF]

open access: yes, 2008
Progress in constructing biological networks will rely on the development of more advanced components that can be predictably modified to yield optimal system performance.
Chase L Beisel   +4 more
core   +5 more sources

Aptamer fluorescence anisotropy sensors for adenosine triphosphate by comprehensive screening tetramethylrhodamine labeled nucleotides [PDF]

open access: yesBiosensors and Bioelectronics, 2015
We previously reported a fluorescence anisotropy (FA) approach for small molecules using tetramethylrhodamine (TMR) labeled aptamer. It relies on target-binding induced change of intramolecular interaction between TMR and guanine (G) base. TMR-labeling sites are crucial for this approach. Only terminal ends and thymine (T) bases could be tested for TMR
Qiang, Zhao, Qin, Lv, Hailin, Wang
openaire   +2 more sources

Predicting aptamer sequences that interact with target proteins using an aptamer-protein interaction classifier and a Monte Carlo tree search approach.

open access: yesPLoS ONE, 2021
Oligonucleotide-based aptamers, which have a three-dimensional structure with a single-stranded fragment, feature various characteristics with respect to size, toxicity, and permeability.
Gwangho Lee   +3 more
doaj   +1 more source

DNA Aptamers Block the Receptor Binding Domain at the Spike Protein of SARS-CoV-2

open access: yesFrontiers in Molecular Biosciences, 2021
DNA aptamers are versatile molecular species obtained by the folding of short single-stranded nucleotide sequences, with highly specific recognition capabilities against proteins.
Fabrizio Cleri   +3 more
doaj   +1 more source

Design and clinical developments of aptamer-drug conjugates for targeted cancer therapy

open access: yesBiomaterials Research, 2021
Background Aptamer has been called “chemical antibody” which displays the specific affinity to target molecules compared to that of antibodies and possesses several therapeutic advantages over antibodies in terms of size, accessibility to synthesis, and ...
Do-Hun Kim   +3 more
doaj   +1 more source

Engineering ligand-responsive RNA controllers in yeast through the assembly of RNase III tuning modules [PDF]

open access: yes, 2011
The programming of cellular networks to achieve new biological functions depends on the development of genetic tools that link the presence of a molecular signal to gene-regulatory activity.
An   +37 more
core   +3 more sources

Aptamer-Assisted Delivery of Nucleotides with Tumor-Suppressing Properties for Targeted Cancer Therapies

open access: yesTrends in Medical Sciences, 2021
: Targeted cancer therapy is developing rapidly according to the fact that it has been demonstrated that this type of therapy can reduce various side effects and adverse events of the commonly available cancer treatment approaches such as chemotherapy and radiotherapy.
Pouya Safarzadeh Kozani   +2 more
openaire   +2 more sources

Application of Aptamers in Virus Detection and Antiviral Therapy

open access: yesFrontiers in Microbiology, 2019
Viral infections can cause serious diseases for humans and animals. Accurate and early detection of viruses is often crucial for clinical diagnosis and therapy. Aptamers are mostly single-stranded nucleotide sequences that are artificially synthesized by
Xinran Zou   +7 more
doaj   +1 more source

A blue light receptor that mediates RNA binding and translational regulation [PDF]

open access: yes, 2019
Sensory photoreceptor proteins underpin light-dependent adaptations in nature and enable the optogenetic control of organismal behavior and physiology.
Bittl, Robert   +9 more
core   +1 more source

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