Engineering a structure switching mechanism into a steroid-binding aptamer and hydrodynamic analysis of the ligand binding mechanism.

Abstract

The steroid binding mechanism of a DNA aptamer was studied using isothermal titration calorimetry (ITC), NMR spectroscopy, quasi-elastic light scattering (QELS), and small-angle X-ray spectroscopy (SAXS). Binding affinity determination of a series of steroid-binding aptamers derived from a parent cocaine-binding aptamer demonstrates that substituting a GA… (More)
DOI: 10.1021/bi201361v

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