PMID- 9334169 OWN - NLM STAT- MEDLINE DCOM- 19971117 LR - 20231213 IS - 0021-9258 (Print) IS - 0021-9258 (Linking) VI - 272 IP - 42 DP - 1997 Oct 17 TI - Tumor necrosis factor (TNF) receptor 1 signaling downstream of TNF receptor-associated factor 2. Nuclear factor kappaB (NFkappaB)-inducing kinase requirement for activation of activating protein 1 and NFkappaB but not of c-Jun N-terminal kinase/stress-activated protein kinase. PG - 26079-82 AB - Like other members of the tumor necrosis factor (TNF) receptor family, p55 TNF receptor 1 (TNF-R1) lacks intrinsic signaling capacity and transduces signals by recruiting associating molecules. The TNF-R1 associated death domain protein interacts with the p55 TNF-R1 cytoplasmic domain and recruits the Fas-associated death domain protein (which directly activates the apoptotic proteases), the protein kinase receptor interacting protein, and TNF receptor-associated factor 2 (TRAF2). TRAF2 has previously been demonstrated to activate both transcription factor nuclear factor kappaB (NFkappaB) and the c-Jun N-terminal kinase/stress-activated protein kinase (JNK/SAPK) pathway, which in turn stimulates transcription factor activating protein 1 (AP1) mainly via phosphorylation of the c-Jun component. We have investigated the signaling properties of NFkappaB-inducing kinase (NIK), a TRAF2-associated protein kinase that mediates NFkappaB induction. NIK was found to be unable to activate JNK/SAPK, mitogen-activated protein kinase, or p38 kinase. Moreover, NIK was not required for JNK/SAPK activation by TNF-R1, thus representing the first TNF-R1 complex component to dissect the NFkappaB and the JNK/SAPK pathways. Despite being unable to activate JNK/SAPK and mitogen-activated protein kinase, NIK strongly activated AP1 and was required for TNF-R1-induced AP1 activation. Therefore, NIK links TNF-R1 to a novel, JNK/SAPK-independent, AP1 activation pathway. FAU - Natoli, G AU - Natoli G AD - Fondazione Andrea Cesalpino and Istituto I Clinica Medica, Policlinico Umberto I, Universita degli Studi di Roma La Sapienza, Viale del Policlinico 155, 00161 Rome, 86100 Italy. FAU - Costanzo, A AU - Costanzo A FAU - Moretti, F AU - Moretti F FAU - Fulco, M AU - Fulco M FAU - Balsano, C AU - Balsano C FAU - Levrero, M AU - Levrero M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Biol Chem JT - The Journal of biological chemistry JID - 2985121R RN - 0 (NF-kappa B) RN - 0 (Proteins) RN - 0 (Proto-Oncogene Proteins c-jun) RN - 0 (Receptors, Tumor Necrosis Factor) RN - 0 (Recombinant Proteins) RN - 0 (TNF Receptor-Associated Factor 2) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) 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 - Enzyme Activation MH - Humans MH - JNK Mitogen-Activated Protein Kinases MH - *Mitogen-Activated Protein Kinases MH - NF-kappa B/*metabolism MH - Protein Serine-Threonine Kinases/metabolism MH - Proteins/*metabolism MH - Proto-Oncogene Proteins c-jun/*metabolism MH - Receptors, Tumor Necrosis Factor/*metabolism MH - Recombinant Proteins/metabolism MH - *Signal Transduction MH - TNF Receptor-Associated Factor 2 MH - NF-kappaB-Inducing Kinase EDAT- 1997/10/23 00:00 MHDA- 1997/10/23 00:01 CRDT- 1997/10/23 00:00 PHST- 1997/10/23 00:00 [pubmed] PHST- 1997/10/23 00:01 [medline] PHST- 1997/10/23 00:00 [entrez] AID - S0021-9258(18)66386-0 [pii] AID - 10.1074/jbc.272.42.26079 [doi] PST - ppublish SO - J Biol Chem. 1997 Oct 17;272(42):26079-82. doi: 10.1074/jbc.272.42.26079.