Figure 5.
Photon bursts in the presence of 1 mM MgATP with fluctuating proximity factors P. Atto488 intensities are shown in dark grey, Atto647N intensities in light grey. Intensities are given in counts per ms. Corresponding proximity factor P traces within the marked bursts are found in the upper part of the images, with mean intensity-weighted P values as black lines (see text for photon burst details).