Fig. 2.
Confirmation of DNA binding activity of TS-regulated transcriptional factors using EMSA. Cells were treated with TS and nuclear proteins were extracted and incubated with biotin-labeled probes corresponding to different TF binding sequences for EMSA as described in MATERIALS AND METHODS. A: GATA. B: NF-κB. C: PAX5. D: Smad 3/4. E: ISRF. F: ICSBP. Lane 1 of each panel indicates free probes. DNA binding activity is represented without (lane 2) and with (lane 3) TS exposure in each panel. Lane 4 of each panel represents binding activity after TS exposure but with 20× excess of cold probes added to the incubation. These results are representative of 3 independent experiments. SMK, smoke.