Table 1. Average brightness increases during ATP depletion of actin arrays at sites of cell- cell attachment but notfocal adhesionsa

a Brightness increases of sites of cell-cell attachment were greater than that of focal adhesion in cells subject to ATP depletion at pH 7.2 (P < 0.01) and pH 5.5 (P < 0.01). In contrast, increases in brightness of cell-cell attachments in cells that were ATP depleted at pH 5.5 and 7.2 were not statistically different (P > 0.3).
Focal adhesions1.022 ± 0.1387.25083
Cell junctions1.32 ± 0.217.213133
Cell junctions1.39 ± 0.265.516164