Figure 6.
Comparison between theoretical and experimental values of the linking number variance, 
. Experimental data (filled circle) for 37°C were taken from reference (25). The data from the current study (open triangle) and from reference (33) (open circle) were adjusted to 37°C according to the temperature dependence of 
presented in Figure 5. The line represents the best theoretical fit of the data. The shown curve corresponds to C of 3.1 × 10−19 erg ·cm, a of 45 nm and DNA effective diameter of 5 nm (33), in very good agreement with other available data.