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The N-end rule and regulation of apoptosis

The ubiquitin-dependent N-end rule pathway targets proteins for degradation through their destabilizing N-terminal residues. This pathway is known to control the import of peptides, chromosome stability and cardiovascular development. A new report identifies yet another function of the N-end rule pathway: the regulation of apoptosis through degradation of Drosophila melanogaster DIAP1.

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Figure 1: The N-end rule pathway in mammals.
Figure 2: Confirmed and putative N-end rule substrates produced by caspases.

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Varshavsky, A. The N-end rule and regulation of apoptosis. Nat Cell Biol 5, 373–376 (2003). https://doi.org/10.1038/ncb0503-373

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