Files in this Data Supplement:

• Supplemental file 1 - Supplemental Fig. 1 (Transcriptional regulation of c-myc expression mediated by Smad7), 2 (Effect of β-catenin and TCF-4 on the transcriptional activity of Smad7), and 3 (Effect of Smad7 on the transcriptional activity of β-catenin and TCF-4).
  Zipped PowerPoint presentation.
• Supplemental file 2 - Supplemental Fig. 6 (The p38 inhibitor SB203680 decreases Smad7-induced accumulation of β-catenin in the nucleus) and 7 (TGF-β-induced translocation of β-catenin is reduced by dominant negative Flag-p38).
  Zipped PowerPoint presentation.
• Supplemental file 3 - Supplemental Fig. 4 (Phosphorylation of Smad3 in TGF-β-treated PC-3U and PC-3U/AS-S7 cells) and 5 (Flag-Smad7 colocalizes with endogenous β-catenin in PC-3U/pMEP4S-7 cells).
  Zipped JPeg file.