TRAF6 is a signal transducer for interleukin-1 - PubMed (original) (raw)

. 1996 Oct 3;383(6599):443-6.

doi: 10.1038/383443a0.

Affiliations

• PMID: 8837778
• DOI: 10.1038/383443a0

TRAF6 is a signal transducer for interleukin-1

Z Cao et al. Nature. 1996.

Abstract

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.

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