Distribution of variables obtained from nanomechanics data. Breaking force (a, b, and c), stiffness (d, e, and f), maximal indentation distance (g, h, and i) and capsid height (j, k, and l) histograms for T7 phage particles at room temperature (RT) and ones treated at 65°C and 80°C are shown. Light gray bars correspond to data obtained on empty capsids at room temperature. The numbers (n) refer to the number of force curves analyzed to obtain the nanomechanical parameters.