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Objective:Receptor-interacting protein 3 (RIP3) is a member of RIP family with a Ser/Thr protein kinase domain in its amino-terminus which is essential for kinase activity and autophosphorylation.Once activated,RIP3 phosphorylates its substrates,such as mixed-lineage kinase domain-like (MLKL),which regulates MLKL activation leading to programmed necrosis.The roles of RIP3 inembryonic development and different disease pathologies,such as inflammation and infections,have been reported in recent years.