ArticleMethods in enzymology2015
Ligand-dependent exponential amplification of self-replicating RNA enzymes.
Article in Methods in enzymology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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2 authors at 1 institution in 1 country.
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Abstract
A general analytical method for the detection of target ligands has been developed, based on a special class of self-replicating aptazymes. These "autocatalytic aptazymes" are generated by linking an aptamer domain to the catalytic domain of a self-replicating RNA enzyme. Ligand-dependent self-replication of RNA proceeds in a self-sustained manner, undergoing exponential amplification at a constant temperature without the assistance of any proteins or other biological materials. The rate of exponential amplification is dependent on the concentration of the ligand, thus enabling quantitative ligand detection. This system has the potential to detect any ligand that can be recognized by an aptamer, including small molecules and proteins. The instability of RNA in biological samples due to the presence of ribonucleases can be overcome by employing the enantiomeric L-RNA form of the self-replicating enzyme. Methods for real-time fluorescence monitoring over the course of exponential amplification are currently being developed.
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