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Science. 1996 Nov 8;274(5289):990-2.

Signal transduction by DR3, a death domain-containing receptor related to TNFR-1 and CD95.

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  • 1Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA. Sciences Inc., 9620 Medical Center Driv.


Tumor necrosis factor receptor-1 (TNFR-1) and CD95 (also called Fas or APO-1) are cytokine receptors that engage the apoptosis pathway through a region of intracellular homology, designated the "death domain." Another death domain-containing member of the TNFR family, death receptor 3 (DR3), was identified and was shown to induce both apoptosis and activation of nuclear factor kappaB. Expression of DR3 appears to be restricted to tissues enriched in lymphocytes. DR3 signal transduction is mediated by a complex of intracellular signaling molecules including TRADD, TRAF2, FADD, and FLICE. Thus, DR3 likely plays a role in regulating lymphocyte homeostasis.

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