ELISA/assay

Toll Like Receptor 4 (TLR4) ELISA Kit

MBS2024497

48-Strip-Wells

550 USD

ELISA Kit

Toll Like Receptor 4 (TLR4) ELISA Kit

Toll Like Receptor 4 (TLR4)

CD284; TOLL; HToll

toll-like receptor 4 isoform A; Toll-like receptor 4; toll-like receptor 4; toll-like receptor 4; hToll; CD_antigen: CD284

TLR4

TLR4; TLR4; TOLL; CD284; TLR-4; ARMD10

TLR4_HUMAN

Rat

639

This assay has high sensitivity and excellent specificity for detection of Toll Like Receptor 4 (TLR4). No significant cross-reactivity or interference between Toll Like Receptor 4 (TLR4) and analogues was observed.

For unopened kit: All the reagents should be kept according to the labels on vials. The Standard, Detection Reagent A, Detection Reagent B and the 96-well strip plate should be stored at -20 degree C upon receipt while the others should be at 4 degree C. For opened kit: When the kit is opened, the remaining reagents still need to be stored according to the above storage condition. Besides, please return the unused wells to the foil pouch containing the desiccant pack, and reseal along entire edge of zip-seal. The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.

Samples: Tissue homogenates, Cell lysates and other biological fluids. Assay Type: Sandwich. Detection Range: 0.156-10ng/mL. Sensitivity: Typically less than 0.063ng/mL.

Precision: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Toll Like Receptor 4 (TLR4) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Toll Like Receptor 4 (TLR4) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100 . Intra-Assay: CV<10% . Inter-Assay: CV<12% . Assay Procedure Summary: 1. Prepare all reagents, samples and standards;. 2. Add 100uL standard or sample to each well. Incubate 2 hours at 37 degree C;. 3. Aspirate and add 100uL prepared Detection Reagent A. Incubate 1 hour at 37 degree C;. 4. Aspirate and wash 3 times;. 5. Add 100uL prepared Detection Reagent B. Incubate 30 minutes at 37 degree C;. 6. Aspirate and wash 5 times;. 7. Add 90uL Substrate Solution. Incubate 15-25 minutes at 37 degree C;. 8. Add 50uL Stop Solution. Read at 450nm immediately.

Principle of the Assay: The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Toll Like Receptor 4 (TLR4). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Toll Like Receptor 4 (TLR4). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Toll Like Receptor 4 (TLR4), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm 10nm. The concentration of Toll Like Receptor 4 (TLR4) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

19924149

NP_612564.1

NM_138554.4

O00206

73,301 Da

Activated TLR4 Signalling Pathway (106400); Activation Of IRF3/IRF7 Mediated By TBK1/IKK Epsilon Pathway (187088); Amoebiasis Pathway (167324); Amoebiasis Pathway (167191); Chagas Disease (American Trypanosomiasis) Pathway (147809); Chagas Disease (American Trypanosomiasis) Pathway (147795); Corticotropin-releasing Hormone Pathway (920957); HIF-1 Signaling Pathway (695200); Hepatitis B Pathway (694606); IKK Complex Recruitment Mediated By RIP1 Pathway (187090)

The protein encoded by this gene is a member of the Toll-like receptor (TLR) family which plays a fundamental role in pathogen recognition and activation of innate immunity. TLRs are highly conserved from Drosophila to humans and share structural and functional similarities. They recognize pathogen-associated molecular patterns that are expressed on infectious agents, and mediate the production of cytokines necessary for the development of effective immunity. The various TLRs exhibit different patterns of expression. This receptor has been implicated in signal transduction events induced by lipopolysaccharide (LPS) found in most gram-negative bacteria. Mutations in this gene have been associated with differences in LPS responsiveness. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]

TLR4: 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. Also involved in LPS- independent inflammatory responses triggered by Ni(2+). These responses require non-conserved histidines and are, therefore, species-specific. Belongs to the lipopolysaccharide (LPS) receptor, a multi-protein complex containing at least CD14, LY96 and TLR4. Binding to bacterial LPS leads to homodimerization. Interacts with LY96 via the extracellular domain. Interacts with MYD88 and TIRAP via their respective TIR domains. Interacts with NOX4. Interacts with CNPY3. Interacts with HSP90B1. The interaction with both CNPY3 and HSP90B1 is required for proper folding in the endoplasmic reticulum. Highly expressed in placenta, spleen and peripheral blood leukocytes. Detected in monocytes, macrophages, dendritic cells and several types of T-cells. Belongs to the Toll-like receptor family. 3 isoforms of the human protein are produced by alternative splicing. Protein type: Membrane protein, integral; Receptor, misc. Chromosomal Location of Human Ortholog: 9q33.1. Cellular Component: integral to plasma membrane; perinuclear region of cytoplasm; cytoplasm; plasma membrane; lipopolysaccharide receptor complex; endosome membrane; external side of plasma membrane. Molecular Function: protein binding; transmembrane receptor activity; lipopolysaccharide binding; lipopolysaccharide receptor activity; receptor activity. Biological Process: I-kappaB kinase/NF-kappaB cascade; positive regulation of nitric oxide biosynthetic process; activation of MAPK activity; positive regulation of NF-kappaB import into nucleus; response to lipopolysaccharide; toll-like receptor 3 signaling pathway; positive regulation of interleukin-10 production; activation of NF-kappaB transcription factor; negative regulation of interleukin-6 production; positive regulation of B cell proliferation; positive regulation of interferon-beta production; toll-like receptor 4 signaling pathway; positive regulation of interferon-alpha production; T-helper 1 type immune response; production of nitric oxide during acute inflammatory response; positive regulation of interleukin-8 biosynthetic process; positive regulation of interleukin-6 production; positive regulation of tumor necrosis factor production; positive regulation of chemokine production; toll-like receptor 2 signaling pathway; macrophage activation; negative regulation of interleukin-23 production; detection of lipopolysaccharide; defense response to bacterium; positive regulation of transcription from RNA polymerase II promoter; I-kappaB phosphorylation; positive regulation of nitric-oxide synthase biosynthetic process; negative regulation of osteoclast differentiation; regulation of cytokine secretion; positive regulation of interleukin-12 production; positive regulation of JNK cascade; defense response to Gram-negative bacterium; positive regulation of interleukin-8 production; negative regulation of interferon-gamma production; positive regulation of MHC class II biosynthetic process; interferon-gamma production; lipopolysaccharide-mediated signaling pathway; B cell proliferation during immune response; positive regulation of tumor necrosis factor biosynthetic process; detection of fungus; MyD88-independent toll-like receptor signaling pathway; negative regulation of tumor necrosis factor production; MyD88-dependent toll-like receptor signaling pathway; positive regulation of interferon-gamma production; negative regulation of interleukin-17 production; positive regulation of interleukin-12 biosynthetic process; positive regulation of interferon-beta biosynthetic process; toll-like receptor signaling pathway; innate immune response; immune response; positive regulation of interleukin-1 production; positive regulation of inflammatory response. Disease: Macular Degeneration, Age-related, 10

48-Strip-Wells

550 USD

96-Strip-Wells

750

5x96-Strip-Wells

2910

10x96-Strip-Wells

5220