Table 2.

Relative amount of F-actin content of PC12 cells determined by TRITC-phalloidin extraction

	Relative content of F-actin
Control	100 ± 3.4% (n = 6)
Cytochalasin D	61.9 ± 6.2% (n = 6)*
A23187	70.2 ± 3.9% (n = 6)*
50 mm K+	82.4 ± 6.3% (n = 5)*

Average content of untreated cells was normalized to 100%. Note the significant reduction of F-actin content in cultures treated with cytochalasin D, A23187, and depolarization with K⁺, respectively. ^*p < 0.01 compared with control (t test).