We gratefully acknowledge Prof. Dr. Simone Fulda (Goethe University Frankfurt) for providing smac/DIABLO transfected Jurkat cells, Dr. Jürgen Eberle, Charite, Berlin, for providing Bcl-2-transfected melanoma cells, and Prof. Dr. Reiner Jänicke (University of Düsseldorf) for providing caspase-3 transfected MCF-7 cells. Here, BCL2 is linked to melanoma.