Radius of gyration of plasmid DNA isoforms from static light scattering

Despite the extensive interest in applications of plasmid DNA, there have been few direct measurements of the root mean square radius of gyration, R(G), of different plasmid isoforms over a broad range of plasmid size. Static light scattering data were obtained using supercoiled, open-circular, and linear isoforms of 5.76, 9.80, and 16.8 kbp plasmids. The results from this study extend the range of R(G) values available in the literature to …