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AB316689

Recombinant Human TLR3 Protein Standard (His tag)

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Recombinant Human TLR3 Protein Standard (His tag) is a Human Fragment protein, expressed in HEK 293 cells, with >80%, suitable for sELISA, SDS-PAGE.

View Alternative Names

CD283, Toll-like receptor 3, TLR3

2 Images
Sandwich ELISA - Recombinant Human TLR3 Protein Standard (His tag) (AB316689)
  • sELISA

Supplier Data

Sandwich ELISA - Recombinant Human TLR3 Protein Standard (His tag) (AB316689)

Sandwich ELISA with the capture antibody dilution at 2 µg/mL and detector antibody dilution at 0.5 µg/mL.

SDS-PAGE - Recombinant Human TLR3 Protein Standard (His tag) (AB316689)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant Human TLR3 Protein Standard (His tag) (AB316689)

SDS-PAGE analysis of ab316689 under reducing conditions for 2ug protein.

Key facts

Purity

>80% SDS-PAGE

Expression system

HEK 293 cells

Tags

His tag C-Terminus

Applications

sELISA, SDS-PAGE

applications

Biologically active

No

Accession

O15455

Animal free

Yes

Carrier free

No

Species

Human

Storage buffer

pH: 7.3 - 7.5 Constituents: 2.922% Sodium chloride, 0.64107% disodium;hydrogen phosphate;dodecahydrate, 0.02858% Potassium phosphate monobasic

storage-buffer

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "sELISA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Sequence info

[{"sequence":null,"proteinLength":"Fragment","predictedMolecularWeight":"78.6 kDa","actualMolecularWeight":null,"aminoAcidEnd":0,"aminoAcidStart":0,"nature":"Recombinant","expressionSystem":"HEK 293 cells","accessionNumber":"O15455","tags":[{"tag":"His","terminus":"C-Terminus"}]}]

Properties and storage information

Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-80°C
Appropriate long-term storage conditions
-80°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

TLR3 also known as Toll-like receptor 3 is a protein that plays an important role in immune response mechanisms. With a molecular mass of around 104 kDa TLR3 is part of the Toll-like receptor family and expresses mostly in immune cells including dendritic cells and macrophages. It locates mainly on the endosomal membrane where it recognizes double-stranded RNA (dsRNA) which is often a sign of viral infection. TLR3 initiates signaling cascades that lead to the activation of important immune transcription factors.
Biological function summary

TLR3 acts as a sensor for viral and endogenous dsRNA. This receptor forms part of the innate immune system serving as a first line of defense against microbial infections. Upon encountering its ligand TLR3 undergoes conformational changes which allow interaction with the adaptor protein TRIF (TIR-domain-containing adapter-inducing interferon-β). This interaction triggers a downstream signaling cascade that leads to the production of type I interferons and pro-inflammatory cytokines which are essential for mounting an effective antiviral response.

Pathways

TLR3 engages in important signaling cascades like the NF-kB and IRF3 pathways. These pathways are activated by the TRIF-dependent pathway which is unique among the Toll-like receptors. TLR3 influences the expression of genes involved in the inflammatory response and apoptosis. The interactions of TLR3 with other proteins such as MyD88 and IRAK1 are indirect as TLR3 does not depend on the usual MyD88-dependent pathway. This specificity makes TLR3 a critical component in pathogen recognition and response strategies within the immune system.

TLR3 has connections with several conditions primarily viral infections and autoimmune disorders like systemic lupus erythematosus (SLE). Mutations or dysregulation of TLR3 may lead to altered immune responses contributing to the pathogenesis of these diseases. TLR3's association with proteins like TRIF and IRF3 is significant in understanding its role in these conditions. Ongoing research investigates TLR3's potential as a therapeutic target to modulate immune responses in disease states.

Specifications

Form

Liquid

General info

Function

Key component of innate and adaptive immunity. TLRs (Toll-like receptors) control host immune response against pathogens through recognition of molecular patterns specific to microorganisms. TLR3 is a nucleotide-sensing TLR which is activated by double-stranded RNA, a sign of viral infection. Acts via the adapter TRIF/TICAM1, leading to NF-kappa-B activation, IRF3 nuclear translocation, cytokine secretion and the inflammatory response.

Sequence similarities

Belongs to the Toll-like receptor family.

Post-translational modifications

Heavily N-glycosylated, except on that part of the surface of the ectodomain that is involved in ligand binding.. TLR3 signaling requires a proteolytic cleavage mediated by cathepsins CTSB and CTSH, the cleavage occurs between amino acids 252 and 346. The cleaved form of TLR3 is the predominant form found in endosomes.. Ubiquitinated by TRIM3; leading to recognition and sorting of polyubiquitinated TLR3 by the ESCRT complexes (PubMed:32878999). Ubiquitinated by ZNRF1 via 'Lys-63'-linked ubiquitin chains; leading to TLR3 lysosomal trafficking and degradation (PubMed:37158982). Ubiquitinated by RNF170 at Lys-765 via 'Lys-48'-linked ubiquitin chains; leading to TLR3 proteasomal degradation (PubMed:31076723).

Subcellular localisation

Endosome membrane

Product protocols

Target data

Key component of innate and adaptive immunity. TLRs (Toll-like receptors) control host immune response against pathogens through recognition of molecular patterns specific to microorganisms. TLR3 is a nucleotide-sensing TLR which is activated by double-stranded RNA, a sign of viral infection. Acts via the adapter TRIF/TICAM1, leading to NF-kappa-B activation, IRF3 nuclear translocation, cytokine secretion and the inflammatory response.
See full target information TLR3

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