Non-treated HT-29 and etoposide treated HT-29 cells were subjected to SDS PAGE followed by western blot with 28961-1-AP (Phospho-P53(Ser15) antibody) at dilution of 1:2000 incubated at 4℃ overnight. The membrane was stripped and re-blotted with GAPDH antibody as loading control.

Immunofluorescent analysis of (4% PFA) fixed etoposide treated HT-29 cells using Phospho-P53 (Ser15) antibody (28961-1-AP) at dilution of 1:400 and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L), CL594-phalloidin (red).

Non-treated HT-29, phosphatase inhibitor treated and λ phosphatase treated HT-29 cells were subjected to SDS PAGE followed by western blot with 28960-1-AP (Phospho-P53 (Ser46) antibody) at dilution of 1:2000 incubated at 4℃ overnight. The membrane was stripped and re-blotted with GAPDH antibody as loading control.

Non-treated and etoposide treated HT-29 cells were subjected to SDS PAGE followed by western blot with 28959-1-AP (Phospho-P53 (Ser46) antibody) at dilution of 1:2000 incubated at room temperature for 1 hours.

Non-treated HEK-293, phosphatase inhibitor treated and λ phosphatase treated HEK-293 cells were subjected to SDS PAGE followed by western blot with 28963-1-AP (Phospho-P53 (Ser392) antibody) at dilution of 1:10000 incubated at room temperature for 1.5 hours. The membrane was stripped and re-blotted with GAPDH antibody as loading control.