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. 2015 Jan 27;10(1):e0111971. doi: 10.1371/journal.pone.0111971

Figure 1. Experimental results from Ramamurthi et al. [6] on SpoVM adsorption on vesicles of varying radii, r, (Experimental data, courtesy: Kumaran Ramamurthi).

Figure 1

A) SpoVM adsorption as a function of vesicle radius. Data points correspond to experimental results for wild-type VM (open circles) as well as VMP9A (open squares). The data has been fit to two models (see text): (i) Curvature model - the dashed curves are the best fits with a repulsive interaction of the form e r = c 1 − c 2/r where c 1 = 2.67k B T, c 2 = 1.1649k B Tμm for VM and c 1 = 2.42k B T and c 2 = 1.2277k B Tμm for VMP9A. Here k B stand for the Boltzmann constant and T is room temperature (300 K). (ii) Surface tension model - the solid curves are best fits with a repulsive interaction of the form e r = c 1 + c 2 * r where c 1 = .7k B T and c 2 = .61k B Tμm−1 for VM, and c 1 = .5366k B T and c 2 = .34k B Tμm−1 for VMP9A. B) Data and best fit curves to SpoVM adsorption (in arbitrary units) versus concentration in solution data for vesicle radii 0.75 μm and 3 μm.