Figure 8

Radial distribution function (RDF) of water as a function of the distance from each siRNA base-pair centre-of-mass (COM), for each system (a) G2-18C, (b) G2-15C, (c) G2-13C, (d) G1-18C, (e) G0-18C. Data of the distribution of water in a system containing only siRNA have been added as a reference (f). Each base pair is represented in the x-axis, radius (nm) in the y-axis and surface in colours (z) represents the RDF. A small fringe along the x axis, where y < 0.5 nm (purple), represents the zone where siRNA atoms are present.