RIP3, a Novel Apoptosis-inducing Kinase

Autor: Daryl T. Baldwin, Xiaoqing Sun, Tony A. Navas, Timothy A. Stewart, Vishva M. Dixit, James Lee
Rok vydání: 1999
Předmět:
Zdroj: Journal of Biological Chemistry. 274:16871-16875
ISSN: 0021-9258
Popis: 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.
Databáze: OpenAIRE