Fig. S7
Reversibility of Ab-SPOP. 293TetOn cells expressing H2B-GFP from a CMV promoter and Ab- SPOP/TagRFP from a bi-directional TRE promoter recover H2B-GFP signal after doxycycline withdrawal. (a) Cells grown for 60 hours in medium without doxycycline. (b) Cells grown for 60 hours in medium containing doxycycline (1 µg/ml). Medium was changed every 24 hours. (c) Cells treated with doxycycline (1 µg/ml) for 12 hours, and then changed to fresh medium containing no doxycycline. Medium was changed every 24 hours. After 48 hours in medium without doxycycline, the H2B-GFP signal was partially recovered. (d) Protein extracts from the cells treated with doxycycline (–: w/o doxycycline for 60 hours, +: w/ doxycycline for 60 hours, +: w/ doxycycline for 12 hours and then with fresh medium for 48 hours) were analyzed by immunoblotting with anti-GFP, anti-FLAG, and anti-Actin antibodies. |