Dynaphylline

AEG40730 is a potent and selective IAP antagonist and a BIR-binding tetrapeptide. AEG40730 binds to cIAP1 and cIAP2, facilitates their autoubiquitination and proteosomal degradation, and causes a dramatic reduction in RIP1 ubiquitination. Treatment with nanomolar concentrations of AEG40730 resulted in the loss of both XIAP and c-IAP1 proteins, albeit with different kinetics.