(b) Chromatin immunoprecipitation using α-FLAG antibody was performed to confirm the pull-down of Sα chromatin from the Sα-engineered (FNLDD-Sα-LexA) CH12F3-2A cells. The a, b, and c bars indicate the primers used for ChIP-qPCR as shown in Fig. 1a (n=3; mean + sd; two tailed unpaired Student's t-test). 