K
Karen O'Rourke
Researcher at Genentech
Publications - 48
Citations - 27864
Karen O'Rourke is an academic researcher from Genentech. The author has contributed to research in topics: Ubiquitin ligase & FADD. The author has an hindex of 44, co-authored 48 publications receiving 25920 citations. Previous affiliations of Karen O'Rourke include University of Washington & University of Michigan.
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Journal ArticleDOI
FLICE, a novel FADD-homologous ICE/CED-3-like protease, is recruited to the CD95 (Fas/APO-1) death--inducing signaling complex.
Marta Muzio,Arul M. Chinnaiyan,Frank C. Kischkel,Karen O'Rourke,Andrej Shevchenko,Jian Ni,Carsten Scaffidi,James D. Bretz,Mei Zhang,Reiner L. Gentz,Matthias Mann,Peter H. Krammer,Marcus E. Peter,Vishva M. Dixit +13 more
TL;DR: This work utilized nano-electrospray tandem mass spectrometry to identify CAP3 and CAP4, components of the CD95 (Fas/APO-1) death-inducing signaling complex, and found a novel 55 kDa protein, designated FLICE, which has homology to both FADD and the ICE/CED-3 family of cysteine proteases.
Journal ArticleDOI
Cryopyrin activates the inflammasome in response to toxins and ATP
Sanjeev Mariathasan,David S. Weiss,Kim Newton,Jacqueline McBride,Karen O'Rourke,Meron Roose-Girma,Wyne P. Lee,Yvette Weinrauch,Denise M. Monack,Vishva M. Dixit +9 more
TL;DR: It is shown that cryopyrin-deficient macrophages cannot activate caspase-1 in response to Toll-like receptor agonists plus ATP, the latter activating the P2X7 receptor to decrease intracellular K+ levels.
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FADD, a novel death domain-containing protein, interacts with the death domain of fas and initiates apoptosis
TL;DR: Findings suggest that FADD may play an important role in the proximal signal transduction of Fas, a mutant of Fas possessing enhanced killing activity, but not the functionally inactive mutants Fas-LPR and Fas-FD8.
Journal ArticleDOI
Yama/CPP32β, a mammalian homolog of CED-3, is a CrmA-inhibitable protease that cleaves the death substrate poly(ADP-ribose) polymerase
Muneesh Tewari,Long T. Quan,Karen O'Rourke,Serge Desnoyers,Zhi Zeng,David R. Beidler,Guy G. Poirier,Guy S. Salvesen,Vishva M. Dixit +8 more
TL;DR: It is proposed that Yama may represent an effector component of the mammalian cell death pathway and suggest that CrmA blocks apoptosis by inhibiting Yama.
Journal ArticleDOI
Caspase-11 cleaves gasdermin D for non-canonical inflammasome signalling
Nobuhiko Kayagaki,Irma B. Stowe,Bettina L. Lee,Karen O'Rourke,Keith R. Anderson,Søren Warming,Trinna L. Cuellar,Benjamin Haley,Merone Roose-Girma,Qui T. Phung,Peter Liu,Jennie R. Lill,Hong Li,Jiansheng Wu,Sarah K. Kummerfeld,Juan Zhang,Wyne P. Lee,Scott J. Snipas,Guy S. Salvesen,Lucy X. Morris,Linda Fitzgerald,Yafei Zhang,Edward M. Bertram,Christopher C. Goodnow,Christopher C. Goodnow,Christopher C. Goodnow,Vishva M. Dixit +26 more
TL;DR: It is shown that gasdermin D is essential for caspase-11-dependent pyroptosis and interleukin-1β maturation and a key mediator of the host response against Gram-negative bacteria.