Table 1.

Mean fluorescent intensities in actin-rich domains of growth cones expressing RFP, Cdc42V12-RFP, or Cdc42N17-RFP

	RFP	Cdc42V12	Cdc42N17
TI-VAMP	112.5 ± 13.1 (n = 19)	55.2 ± 11.5 (n = 22), p < 0.0001	77.0 ± 10.4 (n = 21), p = 0.03
Syb2	37.3 ± 6.3 (n = 15)	28.6 ± 5.8 (n = 13), p = 0.2099	49.8 ± 15.5 (n = 13), p = 0.2002
Actin	120.6 ± 6.8 (n = 30)	78.3 ± 8.0 (n = 30), p = 0.0005	97.6 ± 5.6 (n = 29), p = 0.012

Mean values ± SE (arbitrary units) of two independent experiments (n = number of neurons). p values were calculated with the Mann—Whitney nonparametric test compared with the RFP data.