Table 3.

Effect of Ras transfection on transepithelial electrical parameters

	Potential difference	Resistance	Short circuit current
pBabe	1.2 ± 0.1	161 ± 6	7.3 ± 0.3
Ras	0.5 ± 0.1a	229 ± 19c	2.1 ± 0.1a
Ras-A	0.3 ± 0.1a,b	342 ± 32c,d	1.0 ± 0.1a,e

Data represent the mean ± SE of n = 7 cell sheets. Potential difference is given in millivolts, resistance is given in ohms × square centimeter, and short circuit current is given in microamps per square centimeter. All potential differences were lumen negative.

^ap < 0.001 relative to pBabe.

^bp < 0.02 relative to Ras.

^cp < 0.01 relative to pBabe.

^dp < 0.01 relative to Ras.

^ep < 0.002 relative to Ras.