Table 1.

Transforming activity of HCCR-1 in HEK-293 cells

Transfected DNA source	Foci/μg DNA*	Transformation efficiency**	95% confidence intervals
HCCR-1	13/15	0.9	11.2-13.8
Wild-type ras	18/15	1.2	16.0-19.1
Vector alone	0/15	0	-

*HEK-293cells (3 × 10⁵ cells) were transfected with 5 μg of DNA obtained from indicated source. The results reported here were derived from 3 independent experiments.

**Transformed cell aggregates, foci, were counted by visual examination starting 2-3 weeks after transfection and the transformation efficiencies (i.e., the number of foci per microgram of DNA transfected) were determined.