Abstract
Assays employing aptamers in capillary electrophoresis (CE), including competitive and noncompetitive assays, fluorescence polarization (FP) assays, nonequilibrium capillary electrophoresis of equilibrium mixtures, and affinity-polymerase chain reaction-CE assays, are summarized. These assays can be used to estimate dissociation rate and equilibrium binding constants, determine binding stoichiometries, study molecular interactions, and quantitatively determine specific analytes (e.g., proteins) in complex media. They can potentially be completed in under 60 s, detect zeptomol (10−24) amounts of analyte, be utilized in complex media with little or no cross reaction, and target a number of different analytes of biological, environmental, and clinical importance. This chapter briefly overviews the process of aptamer selection using CE and discusses the various CE-based bioanalytical methods that have been used to study biomolecular interactions.
Keywords
- Capillary Electrophoresis
- Fluorescence Resonance Energy Transfer
- Fluorescence Polarization
- Competitive Assay
- Capillary Electrophoresis Separation
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Guthrie, J.W., Shao, Y., Le, X.C. (2009). Aptamers in Affinity Separations:Capillary Electrophoresis. In: Yingfu, L., Yi, L. (eds) Functional Nucleic Acids for Analytical Applications. Integrated Analytical Systems. Springer, New York, NY. https://doi.org/10.1007/978-0-387-73711-9_9
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