Hydrodynamic radii of WT and mutant DENV2 RNAs. (A) Dynamic light scattering curves from individual experiments, representative of multiple replicate experiments. The mean radius values for WT, Envmut, and NS2Amut are 54, 81, and 75 nm, respectively. (B) RNA radii of WT and mutant RNAs. Values are mean and SD calculated from four experiments. Control NS5mut is denoted by an open symbol.