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Nature Cell Biology 6, 804–806 (1 September 2004) | doi:10.1038/ncb0904-804

An Apollon vista of death and destruction

Seamus J. Martin

The baculovirus IAP repeat (BIR) domain is a protein module found in a diverse group of proteins that have been implicated in the regulation of cell division as well as cell death (Fig. 1).