Figure 3.

Hydrodynamic size reduction in the presence of Mg²⁺ (A) or spermidine Sp³⁺ (B). Coloring and numbering scheme is as in Fig. 2. R_h values that were compromised by either quenching or possible aggregation (RV s1 and s11 in Table 1) in the presence of multivalent cations were omitted from the plot. Linear regression lines with slopes 0.77 ± 0.03, Pearson’s r = 0.89 for Mg²⁺ and 0.73 ± 0.04, and Pearson’s r = 0.87 for Sp³⁺, respectively, are shown. To see this figure in color, go online.