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Letter

Nature Cell Biology 10, 1440–1446 (1 December 2008) | doi:10.1038/ncb1803

Regulation of the Drosophila apoptosome through feedback inhibition

Peter J. Shapiro , Hans H. Hsu , Heekyung Jung , Edith S. Robbins & Hyung Don Ryoo

Apoptosis is induced by caspases, which are members of the cysteine protease family. Caspases are synthesized as inactive zymogens and initiator caspases first gain activity by associating with an oligomeric complex of their adaptor proteins, such as the apoptosome.