Bos taurus Gene: TIRAP
Summary
InnateDB Gene IDBG-642760.3
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol TIRAP
Gene Name toll/interleukin-1 receptor domain-containing adapter protein
Synonyms
Species Bos taurus
Ensembl Gene ENSBTAG00000021504
Encoded Proteins
toll/interleukin-1 receptor domain-containing adapter protein
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
InnateDB Annotation from Orthologs
Summary
[Homo sapiens] TIRAP is a Toll/Interleukin-1 receptor (TIR) domain containing adapter protein that binds to TLR4, serving as a bridge for MYD88 recruitment.
[Homo sapiens] TIRAP is dispensable in TLR2 signalling at high ligand concentrations in macrophages and dendritic cells, with MyD88 probably coupling to the TLR2 receptor complex at sufficient levels to allow activation but has an inhibitory role in the signalling of TLR3 to JNK.
[Homo sapiens] TIRAP is an adapter in Toll-like receptor 4 (TLR4) signal transduction.
[Homo sapiens] TIRAP is differentially involved in signalling by members of the Toll-like receptor (TLR) family and may account for specificity in the downstream signalling of individual TLRs.
[Homo sapiens] TIRAP has a crucial role in the MyD88-dependent signalling pathway shared by TLR2 and TLR4.
[Homo sapiens] TIRAP is a substrate for IRAK1 and IRAK4 with phosphorylation promoting its ubiquitination and degradation.
[Homo sapiens] TIRAP is an activator of TLR2/4 signalling and a negative regulator of TLR3/TRIF signalling. TIRAP is essential in restricting TLR3 signalling thereby protecting the host from unwanted immunopathologies associated with excessive IFN-beta production.
[Homo sapiens] TIRAP Ser180Leu polymorphism is significantly associated with Behcet's disease in UK, but not Middle Eastern, patients. It is suggested that the Ser180Leu functional variant of TIRAP will lead to greater cytokine production and tissue damage with persistence of mucosal lesions upon encounter with pathogens.
[Homo sapiens] TIR domain-contaning protein from Brucella melitensis, TcpB, disrupts the receptor-adaptor interaction between TLR4 and TIRAP.
[Mus musculus] Tirap Ser180Leu polymorphism is significantly associated with Behcet's disease in UK, but not Middle Eastern, patients. It is suggested that the Ser180Leu functional variant of Tirap will lead to greater cytokine production and tissue damage with persistence of mucosal lesions upon encounter with pathogens. (Demonstrated in human)
[Mus musculus] Intracellular Sef/IL-17R (SEFIR) domain of Il17rd targets TIR adaptor proteins Myd88, Tirap, Ticam1, Ticam2 and Traf6 to inhibit TLR downstream signalling.
Entrez Gene
Summary This gene does not have any Entrez summary - the following is the summary from its human ortholog ENSG00000150455:
The innate immune system recognizes microbial pathogens through Toll-like receptors (TLRs), which identify pathogen-associated molecular patterns. Different TLRs recognize different pathogen-associated molecular patterns and all TLRs have a Toll-interleukin 1 receptor (TIR) domain, which is responsible for signal transduction. The protein encoded by this gene is a TIR adaptor protein involved in the TLR4 signaling pathway of the immune system. It activates NF-kappa-B, MAPK1, MAPK3 and JNK, which then results in cytokine secretion and the inflammatory response. Alternative splicing of this gene results in several transcript variants; however, not all variants have been fully described. [provided by RefSeq, Jul 2008]
Gene Information
Type Protein coding
Genomic Location Chromosome 29:30013437-30018246
Strand Forward strand
Band
Transcripts
ENSBTAT00000028660 ENSBTAP00000028660
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 0 experimentally validated interaction(s) in this database.
They are also associated with 43 interaction(s) predicted by orthology.
Predicted by orthology
Total 43 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0005080 protein kinase C binding
GO:0005515 protein binding
GO:0035662 Toll-like receptor 4 binding
GO:0035663 Toll-like receptor 2 binding
GO:0046982 protein heterodimerization activity
Biological Process
GO:0007165 signal transduction
GO:0007166 cell surface receptor signaling pathway
GO:0007249 I-kappaB kinase/NF-kappaB signaling
GO:0030099 myeloid cell differentiation
GO:0032496 response to lipopolysaccharide
GO:0032738 positive regulation of interleukin-15 production
GO:0032757 positive regulation of interleukin-8 production
GO:0032760 positive regulation of tumor necrosis factor production
GO:0034137 positive regulation of toll-like receptor 2 signaling pathway
GO:0034145 positive regulation of toll-like receptor 4 signaling pathway
GO:0035665 TIRAP-dependent toll-like receptor 4 signaling pathway
GO:0043123 positive regulation of I-kappaB kinase/NF-kappaB signaling
GO:0044130 negative regulation of growth of symbiont in host
GO:0045410 positive regulation of interleukin-6 biosynthetic process
GO:0046330 positive regulation of JNK cascade
GO:0050830 defense response to Gram-positive bacterium
GO:0051092 positive regulation of NF-kappaB transcription factor activity
GO:0070374 positive regulation of ERK1 and ERK2 cascade
GO:0070935 3'-UTR-mediated mRNA stabilization
GO:0071221 cellular response to bacterial lipopeptide
GO:0071223 cellular response to lipoteichoic acid
GO:0090073 positive regulation of protein homodimerization activity
Cellular Component
GO:0005737 cytoplasm
GO:0005886 plasma membrane
Orthologs
Species
Homo sapiens
Mus musculus
Gene ID
Gene Order
Pathway Predictions based on Human Orthology Data
NETPATH
REACTOME
MyD88:Mal cascade initiated on plasma membrane pathway
Toll Like Receptor TLR1:TLR2 Cascade pathway
Toll Like Receptor TLR6:TLR2 Cascade pathway
Toll Like Receptor 4 (TLR4) Cascade pathway
Innate Immune System pathway
Toll Like Receptor 2 (TLR2) Cascade pathway
Toll-Like Receptors Cascades pathway
Immune System pathway
Activated TLR4 signalling pathway
KEGG
Toll-like receptor signaling pathway pathway
Toll-like receptor signaling pathway pathway
INOH
PID NCI
Endogenous TLR signaling
Cross-References
SwissProt
TrEMBL Q2LGB6
UniProt Splice Variant
Entrez Gene 531079
UniGene Bt.59523
RefSeq NM_001039962
HUGO
OMIM
CCDS
HPRD
IMGT
EMBL DAAA02063109 DQ319072
GenPept ABC47875
RNA Seq Atlas 531079