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. 2018 Feb 2;9(2):146. doi: 10.1038/s41419-017-0177-2

Fig. 4. RAP80 positively regulates ATM activity to promote cell survival by facilitating the G2/M checkpoint transition.

Fig. 4

a, b The stable shRAP80 #1 infected EC cells, EC109 (a) and EC1 (b), were treated with or without ATM inhibitor KU-55933 and then lysed to detect the indicated proteins using western blotting assays. The gray values were obtained from three independent experiments using Image J software and then subjected to ANOVA test. c EC1/shCon. or EC1/shRAP80 #1 cells pretreated with or without KU-55933 were starved in serum-free medium for 12 h and then recovered in fresh medium for 18 h, afterwards, these pellets were collected to analyze the cell cycle distribution using flow cytometry. The percentage of cells in G2/M phase from three independent experiments was represented as mean ± STD and statistically analyzed using the ANOVA test. d Pellets from above FACS analysis were lysed and subjected to examine G2/M checkpoint-specific proteins using western blotting assays. E. EC1/shCon. and EC1/shRAP80 #1 cells treated with or without ATM inhibitor KU-55933 were subjected to colony formation assays