Homo sapiens Gene: TRAF3
Summary
InnateDB Gene IDBG-21240.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol TRAF3
Gene Name TNF receptor-associated factor 3
Synonyms CAP-1; CAP1; CD40bp; CRAF1; IIAE5; LAP1
Species Homo sapiens
Ensembl Gene ENSG00000131323
Encoded Proteins
TNF receptor-associated factor 3
TNF receptor-associated factor 3
TNF receptor-associated factor 3
TNF receptor-associated factor 3
TNF receptor-associated factor 3
TNF receptor-associated factor 3
TNF receptor-associated factor 3
TNF receptor-associated factor 3
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
InnateDB Annotation
Summary
TRAF3 serves as a negative regulator of the non-canonical NF-kappaB pathway by specifically blocking the activation of NF-kappaB via TRAF2/5.
TRAF3 is required for type I interferon production in response to intracellular double-stranded RNA. Similarly, a direct and specific interaction of the TRAF domain of TRAF3 with the TRAF-interaction motif (TIM) of MAVS is required for optimal MAVS-mediated antiviral responses.
TRAF3 is a major regulator of type I interferon (IFN) production and the innate antiviral response.
TRAF3 cooperates with ZMYND11 in the regulation of Epstein-Barr virus-derived LMP1/CTAR1-induced NF-kappaB activation.
TRAF3 functions downstream of multiple TNF receptors and receptors that induce interferon (IFN)-alpha, IFN-beta, and IFN-lambda production, including Toll-like receptor 3 (TLR3). TLR3-mediated immunity against primary infection by herpes simplex virus-1 (HSV-1) in the central nervous system is critically dependent on TRAF3.
TRAF3 is a highly versatile regulator that positively controls type I interferon production, and negatively regulates MAP kinase activation and alternative NFkB signalling.
Upon sensing dsRNA or dsDNA, TRAF3 interacts with ER-to-Golgi transport proteins to induce MAVS-associated innate immune responses.
Herpes simplex virus 1 protein, UL36 ubiquitin-specific protease (UL36USP), deubiquitinates TRAF3 and inhibits recruitment of TBK1 and counteracts the IFNB pathway
HACE1 plays an inhibitory role in virus-induced signalling by disrupting the MAVS-TRAF3 complex.
InnateDB Annotation from Orthologs
Summary
[Mus musculus] Traf3 is a component of Toll/interleukin-1 receptor (TIR) signalling complexes that is recruited along with Traf6. Traf3 is essential for the induction of type I interferons (IFN) and the anti-inflammatory cytokine interleukin 10, but is dispensable for expression of pro-inflammatory cytokines.
[Mus musculus] Traf3 is a highly versatile regulator that positively controls type I interferon production, and negatively regulates MAP kinase activation and alternative NFkB signalling.
[Mus musculus] Upon sensing dsRNA or dsDNA, Traf3 interacts with ER-to-Golgi transport proteins to induce Mavs-associated innate immune responses. (Demonstrated in human)
[Mus musculus] Traf3 expressed in myeloid cells regulates immune responses in myeloid cells and acts to inhibit inflammation and tumor development.
[Mus musculus] Usp25 physically associates with Traf3 and Traf6 after infection by RNA or DNA viruses and promotes innate antiviral responses by protecting virus-induced proteasome-dependent or independent degradation of Traf3 and Traf6.
Entrez Gene
Summary The protein encoded by this gene is a member of the TNF receptor associated factor (TRAF) protein family. TRAF proteins associate with, and mediate the signal transduction from, members of the TNF receptor (TNFR) superfamily. This protein participates in the signal transduction of CD40, a TNFR family member important for the activation of the immune response. This protein is found to be a critical component of the lymphotoxin-beta receptor (LTbetaR) signaling complex, which induces NF-kappaB activation and cell death initiated by LTbeta ligation. Epstein-Barr virus encoded latent infection membrane protein-1 (LMP1) can interact with this and several other members of the TRAF family, which may be essential for the oncogenic effects of LMP1. Several alternatively spliced transcript variants encoding three distinct isoforms have been reported. [provided by RefSeq, Dec 2010]
Gene Information
Type Protein coding
Genomic Location Chromosome 14:102777476-102911500
Strand Forward strand
Band q32.32
Transcripts
ENST00000351691 ENSP00000332468
ENST00000347662 ENSP00000328003
ENST00000392745 ENSP00000376500
ENST00000560371 ENSP00000454207
ENST00000539721 ENSP00000445998
ENST00000560463 ENSP00000453623
ENST00000558700 ENSP00000453031
ENST00000558880
ENST00000559734 ENSP00000453032
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 195 experimentally validated interaction(s) in this database.
They are also associated with 27 interaction(s) predicted by orthology.
Experimentally validated
Total 195 [view]
Protein-Protein 192 [view]
Protein-DNA 1 [view]
Protein-RNA 0
DNA-DNA 2 [view]
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 27 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0004842 ubiquitin-protein transferase activity
GO:0004871 signal transducer activity
GO:0005164 tumor necrosis factor receptor binding
GO:0005515 protein binding
GO:0008270 zinc ion binding
GO:0016874 ligase activity
GO:0019901 protein kinase binding
GO:0031625 ubiquitin protein ligase binding
GO:0031996 thioesterase binding
Biological Process
GO:0001817 regulation of cytokine production
GO:0002224 toll-like receptor signaling pathway
GO:0002756 MyD88-independent toll-like receptor signaling pathway
GO:0006915 apoptotic process
GO:0007165 signal transduction
GO:0008063 Toll signaling pathway
GO:0016567 protein ubiquitination
GO:0030162 regulation of proteolysis
GO:0032088 negative regulation of NF-kappaB transcription factor activity
GO:0032480 negative regulation of type I interferon production
GO:0032648 regulation of interferon-beta production
GO:0033209 tumor necrosis factor-mediated signaling pathway
GO:0034138 toll-like receptor 3 signaling pathway
GO:0034142 toll-like receptor 4 signaling pathway
GO:0035666 TRIF-dependent toll-like receptor signaling pathway
GO:0042981 regulation of apoptotic process
GO:0045087 innate immune response (InnateDB)
GO:0050688 regulation of defense response to virus
Cellular Component
GO:0005739 mitochondrion
GO:0005768 endosome
GO:0005829 cytosol
GO:0009898 cytoplasmic side of plasma membrane
GO:0035631 CD40 receptor complex
Orthologs
Species
Mus musculus
Bos taurus
Gene ID
Gene Order
Not yet available
Pathways
NETPATH
TNFalpha pathway
RANKL pathway
TWEAK pathway
REACTOME
Negative regulators of RIG-I/MDA5 signaling pathway
TRAF3-dependent IRF activation pathway pathway
RIG-I/MDA5 mediated induction of IFN-alpha/beta pathways pathway
Activation of IRF3/IRF7 mediated by TBK1/IKK epsilon pathway
MyD88-independent cascade pathway
Toll Like Receptor 3 (TLR3) Cascade pathway
Toll Like Receptor 4 (TLR4) Cascade pathway
Innate Immune System pathway
Toll-Like Receptors Cascades pathway
Immune System pathway
Activated TLR4 signalling pathway
TRIF-mediated TLR3/TLR4 signaling pathway
KEGG
Small cell lung cancer pathway
Toll-like receptor signaling pathway pathway
Pathways in cancer pathway
RIG-I-like receptor signaling pathway pathway
Hepatitis C pathway
INOH
PID NCI
CD40/CD40L signaling
Cross-References
SwissProt
TrEMBL H0YL25
UniProt Splice Variant
Entrez Gene 7187
UniGene Hs.510528 Hs.599754 Hs.732634
RefSeq NM_001199427 NM_003300 NM_145725 NM_145726 XM_006720244
HUGO HGNC:12033
OMIM 601896
CCDS CCDS55946 CCDS9975 CCDS9976
HPRD 03539
IMGT
EMBL AL117209 AL132801
GenPept
RNA Seq Atlas 7187