Induction of WASP-CAT expression by Ets-1 in HeLa cells. HeLa were cotransfected with W-CAT5′▵-1,580 (15 μg) and with 0, 5, and 15 μg of SVETS-1. Bluescript DNA was added to bring the final amount of DNA to 30 μg. CAT assays were as detailed in Materials and Methods.