Overview:

Tumor necrosis factor receptor-associated factor 1 (TRAF1) is a member of the TNF receptor-associated factor (TRAF) family. Unlike other members of the TRAF family, it lacks the N-terminal RING/zinc-finger domain. As an adapter protein, TRAF1 regulates the activation of NF-kappa-B and JNK and plays a role in the regulation of cell survival and apoptosis. TRAF1 has been shown as a substrate of PKN1 kinase activity (1). TRAF1 inhibits TNFR2-induced proteasomal degradation of TRAF2 and relieves TNFR1-induced activation of NFκB from the inhibitory effect of TNFR2 (2).

Gene Aliases:

EBI6, MGC:10353

Genbank Number:

NM_005658

References:

1. Kato T. Jr. et al: Negative regulation of constitutive NF-kappaB and JNK signaling by PKN1-mediated phosphorylation of TRAF1. Genes Cells 13:509-520(2008)

2. Wicovsky A. et al: Tumor necrosis factor receptor-associated factor-1 enhances proinflammatory TNF receptor-2 signaling and modifies TNFR1-TNFR2 cooperation. Oncogene 28:1769-1781(2009)