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Aptamers are single-stranded DNA or RNA molecules with ligand-binding capabilities. Signaling aptamers refer to aptamers or modified aptamers with recordable signal generation ability. Fluorescence-signaling aptamers, in particular, are valuable molecular tools that can be used to establish important techniques or assays for the interrogation of identities and concentrations of proteins and metabolites...
Aptamers are nucleic acid species that are selected in vitro for their specific binding properties. We describe methods for the production and processing of aptamer microarrays, including detailed procedures for the high-throughput, enzymatic synthesis of 5′ RNA biotinylated aptamers and for arraying them onto streptavidin-coated glass slides. Also presented are methods for processing the aptamer...
Functional nucleic acids (FNAs) are single-stranded DNA or RNA molecules, typically generated through in vitro selection, that have the ability to act as receptors for target molecules (aptamers) or perform catalysis of a chemical reaction (deoxyribozymes and ribozymes). Fluorescence-signaling aptamers and deoxyribozymes have recently emerged as promising biological recognition and signaling elements,...
We recently optimized a procedure that directly yields aptameric sensors for small molecules in so-called structure-switching format. The protocol has a high success rate, short time, and is sufficiently simple to be readily implemented in a non-specialist laboratory. We provide a stepwise guide to this selection protocol.
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