Files in this Data Supplement:

• Supplemental file 1 - Fig. S1 (hMMS21 was in vitro translated in the presence of [35S]methionine and subjected to control or SUMO reactions)Fig. S1 (hMMS21 was in vitro translated in the presence of [³⁵S]methionine and subjected to control or SUMO reactions)
  Zipped EPS document, 311K.
• Supplemental file 2 - Fig. S2 (zVAD-fmk prevents MMS-induced apoptosis in hMMS21-RNAi cells)
  Zipped EPS document, 510K.
• Supplemental file 3 - Supplemental figure legends
  MS Word document, 27K.