dbPAF Protein Information


Tag Content
dbPAF ID dbPAF-0000030
Uniprot Accession O00206; TLR4_HUMAN; A8K1Y8; A9XLP9; A9XLQ0; A9XLQ1; B4E194; D1CS52; D1CS53; Q5VZI8; Q5VZI9; Q9UK78; Q9UM57;
Genbank Protein ID NP_003257.1; NP_612564.1; NP_612567.1;
Genbank Nucleotide ID NM_003266.3; NM_138554.4; NM_138557.2;
Protein Name Toll-like receptor 4
Protein Synonyms/Alias hToll;
Gene Name TLR4
Gene Synonyms/Alias
Organism Homo sapiens(Human)
NCBI Taxa ID 9606
Functional Description
(View all)
Cooperates with LY96 and CD14 to mediate the innate immune response to bacterial lipopolysaccharide (LPS). Acts via MYD88, TIRAP and TRAF6, leading to NF-kappa-B activation, cytokine secretion and the inflammatory response (PubMed:9237759, PubMed:10835634). Also involved in LPS-independent inflammatory responses triggered by free fatty acids, such as palmitate, and Ni(2+). Responses triggered by Ni(2+) require non-conserved histidines and are, therefore, species-specific (PubMed:20711192). In complex with TLR6, promotes sterile inflammation in monocytes/macrophages in response to oxidized low-density lipoprotein (oxLDL) or amyloid-beta 42. In this context, the initial signal is provided by oxLDL- or amyloid-beta 42-binding to CD36. This event induces the formation of a heterodimer of TLR4 and TLR6, which is rapidly internalized and triggers inflammatory response, leading to the NF-kappa-B-dependent production of CXCL1, CXCL2 and CCL9 cytokines, via MYD88 signaling pathway, and CCL5 cytokine, via TICAM1 signaling pathway, as well as IL1B secretion.
Phosphorylation Sites
dbPAF PTMs: 9
PositionPeptidesSourceReferences ( PMIDs )
175PEYFSNLTNLEHLDLdbPTM 3.0;PhosphoSitePlus;curated16786156; 16381945; 23193290; 22135298; 22817900
407SLKYLDLSFNGVITMcurated26074081
551NSLQVLDYSLNHIMTPhosphoSitePlus22135298
674YGRGENIYDAFVIYSdbPTM 3.0;PhosphoSitePlus;curated17392283; 16381945; 23193290; 22135298; 22817900
680IYDAFVIYSSQDEDWdbPTM 3.0;PhosphoSitePlus;curated17392283; 16381945; 23193290; 22135298; 22817900
730IHEGFHKSRKVIVVVdbPTM 3.0;HPRD 9;PhosphoSitePlus;curated20058876; 16381945; 23193290; 18988627; 22135298; 22817900
738RKVIVVVSQHFIQSRPhosphoSitePlus22135298
790VELYRLLSRNTYLEWdbPTM 3.0;PhosphoSitePlus;curated20557879; 16381945; 23193290; 22135298; 22817900
800TYLEWEDSVLGRHIFPhosphoSitePlus22135298
Sequence
(Fasta)
MMSASRLAGT LIPAMAFLSC VRPESWEPCV EVVPNITYQC MELNFYKIPD NLPFSTKNLD 60
LSFNPLRHLG SYSFFSFPEL QVLDLSRCEI QTIEDGAYQS LSHLSTLILT GNPIQSLALG 120
AFSGLSSLQK LVAVETNLAS LENFPIGHLK TLKELNVAHN LIQSFKLPEY FSNLTNLEHL 180
DLSSNKIQSI YCTDLRVLHQ MPLLNLSLDL SLNPMNFIQP GAFKEIRLHK LTLRNNFDSL 240
NVMKTCIQGL AGLEVHRLVL GEFRNEGNLE KFDKSALEGL CNLTIEEFRL AYLDYYLDDI 300
IDLFNCLTNV SSFSLVSVTI ERVKDFSYNF GWQHLELVNC KFGQFPTLKL KSLKRLTFTS 360
NKGGNAFSEV DLPSLEFLDL SRNGLSFKGC CSQSDFGTTS LKYLDLSFNG VITMSSNFLG 420
LEQLEHLDFQ HSNLKQMSEF SVFLSLRNLI YLDISHTHTR VAFNGIFNGL SSLEVLKMAG 480
NSFQENFLPD IFTELRNLTF LDLSQCQLEQ LSPTAFNSLS SLQVLNMSHN NFFSLDTFPY 540
KCLNSLQVLD YSLNHIMTSK KQELQHFPSS LAFLNLTQND FACTCEHQSF LQWIKDQRQL 600
LVEVERMECA TPSDKQGMPV LSLNITCQMN KTIIGVSVLS VLVVSVVAVL VYKFYFHLML 660
LAGCIKYGRG ENIYDAFVIY SSQDEDWVRN ELVKNLEEGV PPFQLCLHYR DFIPGVAIAA 720
NIIHEGFHKS RKVIVVVSQH FIQSRWCIFE YEIAQTWQFL SSRAGIIFIV LQKVEKTLLR 780
QQVELYRLLS RNTYLEWEDS VLGRHIFWRR LRKALLDGKS WNPEGTVGTG CNWQEATSI 840
Keyword

KW-0002--3D-structure
KW-0913--Age-related macular degeneration
KW-0025--Alternative splicing
KW-1003--Cell membrane
KW-0181--Complete proteome
KW-0903--Direct protein sequencing
KW-1015--Disulfide bond
KW-0325--Glycoprotein
KW-0391--Immunity
KW-0395--Inflammatory response
KW-0399--Innate immunity
KW-0433--Leucine-rich repeat
KW-0472--Membrane
KW-0621--Polymorphism
KW-0675--Receptor
KW-1185--Reference proteome
KW-0677--Repeat
KW-0732--Signal
KW-0812--Transmembrane
KW-1133--Transmembrane helix

Interpro

IPR000483--Cys-rich_flank_reg_C
IPR001611--Leu-rich_rpt
IPR003591--Leu-rich_rpt_typical-subtyp
IPR000157--TIR_dom
IPR027168--TLR4

PROSITE

PS51450--LRR
PS50104--TIR

Pfam

PF13855--LRR_8
PF01582--TIR

Gene Ontology

GO:0009986--C:cell surface
GO:0005737--C:cytoplasm
GO:0010008--C:endosome membrane
GO:0009897--C:external side of plasma membrane
GO:0005887--C:integral component of plasma membrane
GO:0031226--C:intrinsic component of plasma membrane
GO:0046696--C:lipopolysaccharide receptor complex
GO:0048471--C:perinuclear region of cytoplasm
GO:0005886--C:plasma membrane
GO:0001530--F:lipopolysaccharide binding
GO:0001875--F:lipopolysaccharide receptor activity
GO:0004872--F:receptor activity
GO:0004888--F:transmembrane signaling receptor activity
GO:0097296--P:activation of cysteine-type endopeptidase activity involved in apoptotic signaling pathway
GO:0000187--P:activation of MAPK activity
GO:0006915--P:apoptotic process
GO:0002322--P:B cell proliferation involved in immune response
GO:0071222--P:cellular response to lipopolysaccharide
GO:0071223--P:cellular response to lipoteichoic acid
GO:0071260--P:cellular response to mechanical stimulus
GO:0042742--P:defense response to bacterium
GO:0050829--P:defense response to Gram-negative bacterium
GO:0016046--P:detection of fungus
GO:0032497--P:detection of lipopolysaccharide
GO:0097191--P:extrinsic apoptotic signaling pathway
GO:0007249--P:I-kappaB kinase/NF-kappaB signaling
GO:0007252--P:I-kappaB phosphorylation
GO:0006955--P:immune response
GO:0045087--P:innate immune response
GO:0032609--P:interferon-gamma production
GO:0060729--P:intestinal epithelial structure maintenance
GO:0031663--P:lipopolysaccharide-mediated signaling pathway
GO:0042116--P:macrophage activation
GO:0002755--P:MyD88-dependent toll-like receptor signaling pathway
GO:0002756--P:MyD88-independent toll-like receptor signaling pathway
GO:0070373--P:negative regulation of ERK1 and ERK2 cascade
GO:0032689--P:negative regulation of interferon-gamma production
GO:0032700--P:negative regulation of interleukin-17 production
GO:0032707--P:negative regulation of interleukin-23 production
GO:0032715--P:negative regulation of interleukin-6 production
GO:0045671--P:negative regulation of osteoclast differentiation
GO:0032720--P:negative regulation of tumor necrosis factor production
GO:0002537--P:nitric oxide production involved in inflammatory response
GO:0030890--P:positive regulation of B cell proliferation
GO:0032722--P:positive regulation of chemokine production
GO:0070374--P:positive regulation of ERK1 and ERK2 cascade
GO:0010628--P:positive regulation of gene expression
GO:0050729--P:positive regulation of inflammatory response
GO:0032727--P:positive regulation of interferon-alpha production
GO:0045359--P:positive regulation of interferon-beta biosynthetic process
GO:0032728--P:positive regulation of interferon-beta production
GO:0032729--P:positive regulation of interferon-gamma production
GO:0032732--P:positive regulation of interleukin-1 production
GO:0032733--P:positive regulation of interleukin-10 production
GO:0045084--P:positive regulation of interleukin-12 biosynthetic process
GO:0032735--P:positive regulation of interleukin-12 production
GO:0032755--P:positive regulation of interleukin-6 production
GO:0045416--P:positive regulation of interleukin-8 biosynthetic process
GO:0032757--P:positive regulation of interleukin-8 production
GO:0046330--P:positive regulation of JNK cascade
GO:0060907--P:positive regulation of macrophage cytokine production
GO:0045348--P:positive regulation of MHC class II biosynthetic process
GO:0042346--P:positive regulation of NF-kappaB import into nucleus
GO:0051092--P:positive regulation of NF-kappaB transcription factor activity
GO:0045429--P:positive regulation of nitric oxide biosynthetic process
GO:0051770--P:positive regulation of nitric-oxide synthase biosynthetic process
GO:0070430--P:positive regulation of nucleotide-binding oligomerization domain containing 1 signaling pathway
GO:0070434--P:positive regulation of nucleotide-binding oligomerization domain containing 2 signaling pathway
GO:0010572--P:positive regulation of platelet activation
GO:0045944--P:positive regulation of transcription from RNA polymerase II promoter
GO:0042535--P:positive regulation of tumor necrosis factor biosynthetic process
GO:0032760--P:positive regulation of tumor necrosis factor production
GO:0012501--P:programmed cell death
GO:0050707--P:regulation of cytokine secretion
GO:0002730--P:regulation of dendritic cell cytokine production
GO:0032496--P:response to lipopolysaccharide
GO:0042088--P:T-helper 1 type immune response
GO:0034134--P:toll-like receptor 2 signaling pathway
GO:0034138--P:toll-like receptor 3 signaling pathway
GO:0034142--P:toll-like receptor 4 signaling pathway
GO:0002224--P:toll-like receptor signaling pathway
GO:0038123--P:toll-like receptor TLR1:TLR2 signaling pathway
GO:0038124--P:toll-like receptor TLR6:TLR2 signaling pathway
GO:0035666--P:TRIF-dependent toll-like receptor signaling pathway