Figure 1.
Schematic illustration of the integrated fluorescence analysis. Grey area shows a cell. Region 1 (solid ellipse) encompasses a whole cell. Region 2 (broken ellipse) encompasses region 1. Neither region (1 or 2) contains cells or fluorescent obstacles other than the cell of interest. I cell is the integrated fluorescence over a whole cell. I 1 and I 2 are the integrated fluorescence values within region 1 and region 2, respectively. S 1 and S 2 are the areas of region 1 and region 2, respectively.