Abstract
The purpose of this chapter is to provide detailed instructions for the preparation and atomic force microscopy (AFM) imaging of linear chains of quadruplex DNA (a.k.a. “G-wire DNA”). Successful self-assembly of long chain quadruplex DNA requires pure concentrated guanine-rich oligonucleotide sequence (GROs) and monovalent cations in a growth buffer. AFM imaging of individual G-wire DNA strands requires many carefully monitored steps, including substrate preparation, G-wire concentration, adsorption onto substrate, rinsing, drying, appropriate selection/use of imaging probes, and dry atmosphere imaging conditions. Detailed step-wise instructions are provided.
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Vesenka, J. (2011). Preparation and Atomic Force Microscopy of Quadruplex DNA. In: Zuccheri, G., Samorì, B. (eds) DNA Nanotechnology. Methods in Molecular Biology, vol 749. Humana Press. https://doi.org/10.1007/978-1-61779-142-0_8
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DOI: https://doi.org/10.1007/978-1-61779-142-0_8
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