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    J Biol Chem. 1999 Jun 11;274(24):16871-5.

    RIP3, a novel apoptosis-inducing kinase.

    Source

    Departments of Molecular Oncology, Genentech, Inc., South San Francisco, California 94080, USA.

    Abstract

    RIP3 is a novel gene product containing a N-terminal kinase domain that shares extensive homology with the corresponding domain in RIP (receptor-interacting protein) and RIP2. Unlike RIP, which has a C-terminal death domain, and RIP2, which has a C-terminal caspase activation and recruitment domain, RIP3 has a unique C terminus. RIP3 binds RIP through its unique C-terminal segment and by virtue of this interaction is recruited to the tumor necrosis factor (TNF) receptor-1 signaling complex. Previous studies have shown that RIP mediates TNF-induced activation of the anti-apoptotic NF-kappaB pathway. RIP3, however, attenuates both RIP and TNF receptor-1-induced NF-kappaB activation. Overexpression studies revealed RIP3 to be a potent inducer of apoptosis, capable of selectively binding to large prodomain initiator caspases.

    PMID:
    10358032
    [PubMed - indexed for MEDLINE]
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