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TRAF6

The protein encoded by this gene is a member of the TNF receptor associated factor (TRAF) protein family. TRAF proteins are associated with, and mediate signal transduction from, members of the TNF receptor superfamily. This protein mediates signaling from members of the TNF receptor superfamily as well as the Toll/IL-1 family. Signals from receptors such as CD40, TNFSF11/RANCE and IL-1 have been shown to be mediated by this protein. This protein also interacts with various protein kinases including IRAK1/IRAK, SRC and PKCzeta, which provides a link between distinct signaling pathways. This protein functions as a signal transducer in the NF-kappaB pathway that activates IkappaB kinase (IKK) in response to proinflammatory cytokines. The interaction of this protein with UBE2N/UBC13, and UBE2V1/UEV1A, which are ubiquitin conjugating enzymes catalyzing the formation of polyubiquitin chains, has been found to be required for IKK activation by this protein. This protein also interacts with the transforming growth factor (TGF) beta receptor complex and is required for Smad-independent activation of the JNK and p38 kinases. This protein has an amino terminal RING domain which is followed by four zinc-finger motifs, a central coiled-coil region and a highly conserved carboxyl terminal domain, known as the TRAF-C domain. Two alternatively spliced transcript variants, encoding an identical protein, have been reported. [provided by RefSeq, Feb 2012]
Protein class

Enzymes

Predicted location

Intracellular

Single cell type specificity

Low cell type specificity

Immune cell specificity

Low immune cell specificity

Cell line specificity

Low cell line specificity

Interaction

Homotrimer. Homooligomer. N-terminal region is dimeric while C-terminal region is trimeric; maybe providing a mode of oligomerization. Upon IL1B treatment, forms a complex with PELI1, IRAK1, IRAK4 and MYD88; this complex recruits MAP3K7/TAK1, TAB1 and TAB2 to mediate NF-kappa-B activation. Direct binding of SMAD6 to PELI1 prevents the complex formation and hence negatively regulates IL1R-TLR signaling and eventually NF-kappa-B-mediated gene expression. Binds to TNFRSF5/CD40 and TNFRSF11A/RANK. Associates with NGFR, TNFRSF17, IRAK2, IRAK3, RIPK2, MAP3K1, MAP3K5, MAP3K14, CSK, TRAF, TRAF-interacting protein TRIP and TNF receptor associated protein TDP2. Interacts with IL17R. Interacts with SQSTM1 bridging NTRK1 and NGFR. Forms a ternary complex with SQSTM1 and PRKCZ (By similarity). Interacts with PELI2 and PELI3. Binds UBE2V1. Interacts with TAX1BP1. Interacts with ZNF675. Interacts with ARRB1 and ARRB2. Interacts with MAP3K7 and TAB1/MAP3K7IP1; during IL-1 signaling. Interacts with UBE2N. Interacts with TGFBR1, HDAC1 and RANGAP1. Interacts with AKT1, AKT2 and AKT3. Interacts (via TRAF domains) with NUMBL (via C-terminal). Interacts with RBCK1. Interacts with LIMD1 (via LIM domains) (By similarity). Interacts with RSAD2/viperin (By similarity). Interacts (via C-terminus) with EIF2AK2/PKR (via the kinase catalytic domain) (By similarity). Interacts with ZFAND5. Interacts with IL1RL1. Interacts with TRAFD1. Interacts with AJUBA. Interacts with MAVS/IPS1. Interacts (via TRAF domains) with DYNC2I2 (via WD domains). Interacts with IFIT3 (via N-terminus). Interacts with TICAM2. Interacts with CARD14. Interacts with CD40 and MAP3K8; the interaction is required for ERK activation (By similarity). Interacts with TICAM1 and this interaction is enhanced in the presence of WDFY1 (PubMed:25736436). Interacts with TANK; this interaction increases in response to DNA damage (PubMed:25861989). Interacts with USP10; this interaction increases in response to DNA damage (PubMed:25861989). Interacts with ZC3H12A; this interaction increases in response to DNA damage and is stimulated by TANK (PubMed:25861989). Interacts with WDFY3 (By similarity). Interacts with TRIM13 (PubMed:28087809). Interacts with GPS2 (By similarity). Interacts (via C-terminus) with SASH1 (PubMed:23776175). Interacts with LRRC19 (PubMed:25026888). Interacts with IL17RA AND TRAF3IP2. Interacts with TOMM70 (PubMed:20628368). Interacts with AMBRA1; interaction is required to mediate 'Lys-63'-linked ubiquitination of ULK1 (PubMed:23524951).

Molecular function

Transferase

More Types Infomation

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