TRAF6

The coiled coil domain mediates homo- and hetero-oligomerization.

The MATH/TRAF domain binds to receptor cytoplasmic domains.

E3 ubiquitin ligase that, together with UBE2N and UBE2V1, mediates the synthesis of 'Lys-63'-linked-polyubiquitin chains conjugated to proteins, such as ECSIT, IKBKG, IRAK1, AKT1 and AKT2 (PubMed:11057907, PubMed:18347055, PubMed:19465916, PubMed:19713527, PubMed:31620128). Also mediates ubiquitination of free/unanchored polyubiquitin chain that leads to MAP3K7 activation (PubMed:19675569). Leads to the activation of NF-kappa-B and JUN (PubMed:16378096, PubMed:17135271, PubMed:17703191). Seems to also play a role in dendritic cells (DCs) maturation and/or activation (By similarity). Represses c-Myb-mediated transactivation, in B-lymphocytes (PubMed:18093978, PubMed:18758450). Adapter protein that seems to play a role in signal transduction initiated via TNF receptor, IL-1 receptor and IL-17 receptor (PubMed:12140561, PubMed:19825828, PubMed:8837778). Regulates osteoclast differentiation by mediating the activation of adapter protein complex 1 (AP-1) and NF-kappa-B, in response to RANK-L stimulation (By similarity). Together with MAP3K8, mediates CD40 signals that activate ERK in B-cells and macrophages, and thus may play a role in the regulation of immunoglobulin production (By similarity). Participates also in the TCR signaling by ubiquitinating LAT (PubMed:23514740, PubMed:25907557).

Protein modification; protein ubiquitination.

Sumoylated on Lys-124, Lys-142 and Lys-453 with SUMO1.

Polyubiquitinated on Lys-124 by TRAF3IP2; after cell stimulation with IL17A (PubMed:19825828). Polyubiquitinated on Lys-124; after cell stimulation with IL1B or TGFB. This ligand-induced cell stimulation leads to dimerization/oligomerization of TRAF6 molecules, followed by auto-ubiquitination which involves UBE2N and UBE2V1 and leads to TRAF6 activation. This 'Lys-63' site-specific poly-ubiquitination appears to be associated with the activation of signaling molecules. Endogenous autoubiquitination occurs only for the cytoplasmic form. Deubiquitinated by USP10 in a TANK-dependent manner, leading to the negative regulation of NF-kappaB signaling upon DNA damage (PubMed:25861989). LRRC19 induces 'Lys-63' ubiquitination (PubMed:25026888). Ubiquitinated at Lys-319 by the SCF(FBXL2) complex, leading to its degradation by the proteasome (By similarity).

(Microbial infection) Deubiquitinated by Epstein-Barr virus BPLF1 on both 'Lys-48' and 'Lys-63'-linked ubiquitin chains; leading to NF-kappa-B signaling inhibition.

Belongs to the TNF receptor-associated factor family. A subfamily.

Expressed in heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas.

• Cytoplasm
• Cytoplasm
• Cell cortex
• Nucleus
• Lipid droplet
• Found in the nuclei of some aggressive B-cell lymphoma cell lines as well as in the nuclei of both resting and activated T- and B-lymphocytes. Found in punctate nuclear body protein complexes. Ubiquitination may occur in the cytoplasm and sumoylation in the nucleus. RSAD2/viperin recruits it to the lipid droplet (By similarity).

RNF85, TRAF6, TNF receptor-associated factor 6, E3 ubiquitin-protein ligase TRAF6, Interleukin-1 signal transducer, RING finger protein 85, RING-type E3 ubiquitin transferase TRAF6

• entrezGene:7189
• omim:602355
• swissprot:Q9Y4K3

Proteins

Immunology & Infectious Disease

• Oncology

59573Da