PMID- 9275204 OWN - NLM STAT- MEDLINE DCOM- 19971001 LR - 20230413 IS - 0027-8424 (Print) IS - 1091-6490 (Electronic) IS - 0027-8424 (Linking) VI - 94 IP - 18 DP - 1997 Sep 2 TI - Tumor necrosis factor (TNF)-mediated kinase cascades: bifurcation of nuclear factor-kappaB and c-jun N-terminal kinase (JNK/SAPK) pathways at TNF receptor-associated factor 2. PG - 9792-6 AB - TNF-induced activation of the transcription factor NF-kappaB and the c-jun N-terminal kinase (JNK/SAPK) requires TNF receptor-associated factor 2 (TRAF2). The NF-kappaB-inducing kinase (NIK) associates with TRAF2 and mediates TNF activation of NF-kappaB. Herein we show that NIK interacts with additional members of the TRAF family and that this interaction requires the conserved "WKI" motif within the TRAF domain. We also investigated the role of NIK in JNK activation by TNF. Whereas overexpression of NIK potently induced NF-kappaB activation, it failed to stimulate JNK activation. A kinase-inactive mutant of NIK was a dominant negative inhibitor of NF-kappaB activation but did not suppress TNF- or TRAF2-induced JNK activation. Thus, TRAF2 is the bifurcation point of two kinase cascades leading to activation of NF-kappaB and JNK, respectively. FAU - Song, H Y AU - Song HY AD - Tularik, Two Corporate Drive, South San Francisco, CA 94080, USA. FAU - Regnier, C H AU - Regnier CH FAU - Kirschning, C J AU - Kirschning CJ FAU - Goeddel, D V AU - Goeddel DV FAU - Rothe, M AU - Rothe M LA - eng PT - Journal Article PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (NF-kappa B) RN - 0 (Proteins) RN - 0 (TNF Receptor-Associated Factor 2) RN - 0 (Tumor Necrosis Factor-alpha) RN - EC 2.7.11.17 (Calcium-Calmodulin-Dependent Protein Kinases) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) SB - IM MH - Calcium-Calmodulin-Dependent Protein Kinases/*metabolism MH - Cell Line MH - Humans MH - JNK Mitogen-Activated Protein Kinases MH - *Mitogen-Activated Protein Kinases MH - Mutation MH - NF-kappa B/*metabolism MH - Proteins/genetics/*metabolism MH - Signal Transduction/*drug effects MH - TNF Receptor-Associated Factor 2 MH - Tumor Necrosis Factor-alpha/metabolism/*pharmacology PMC - PMC23270 EDAT- 1997/09/02 00:00 MHDA- 1997/09/02 00:01 PMCR- 1998/03/02 CRDT- 1997/09/02 00:00 PHST- 1997/09/02 00:00 [pubmed] PHST- 1997/09/02 00:01 [medline] PHST- 1997/09/02 00:00 [entrez] PHST- 1998/03/02 00:00 [pmc-release] AID - 2176 [pii] AID - 10.1073/pnas.94.18.9792 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 1997 Sep 2;94(18):9792-6. doi: 10.1073/pnas.94.18.9792.