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TRAF6 is a signal transducer for interleukin-1.

Nature | Oct 3, 1996

http://www.ncbi.nlm.nih.gov/pubmed/8837778

Many cytokines signal through different cell-surface receptors to activate the transcription factor NF-kappaB. Members of the TRAF protein family have been implicated in the activation of NF-kappaB by the tumour-necrosis factor (TNF)-receptor superfamily. Here we report the identification of a new TRAF family member, designated TRAF6. When overexpressed in human 293 cells, TRAF6 activates NF-kappaB. A dominant-negative mutant of TRAF6 inhibits NF-kappaB activation signalled by interleukin-1 (IL-1) but not by TNF. IL-1 treatment of 293 cells induces the association of TRAF6 with IRAK, a serine/threonine kinase that is rapidly recruited to the IL-1 receptor after IL-1 induction. These findings indicate that TRAF proteins may function as signal transducers for distinct receptor families and that TRAF6 participates in IL-1 signalling.

Pubmed ID: 8837778 RIS Download

Mesh terms: Amino Acid Sequence | Animals | Binding Sites | Carrier Proteins | Cell Line | Humans | Interleukin-1 | Interleukin-1 Receptor-Associated Kinases | Molecular Sequence Data | NF-kappa B | Protein Kinases | Proteins | Sequence Deletion | Sequence Homology, Amino Acid | Signal Transduction | TNF Receptor-Associated Factor 6 | Transfection

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