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Invitrogen
CD284 (TLR4) Monoclonal Antibody (HTA125), Functional Grade, eBioscience™
-Functional-Grade-Flow-20170216130641.jpg?time=20220826 "CD284 (TLR4) Antibody in Flow Cytometry (Flow)")
-Functional-Grade-Flow-20170216130641.jpg?time=20220826)
-Functional-Grade-Flow-20170216130641.jpg?time=20220826?time=20220826 "CD284 (TLR4) Antibody (16-9917-82) in Flow")
Product Details
16-9917-82
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human
Published species
Human,
Shark
Host/Isotype
Mouse
/ IgG2a, kappa
Recommended Isotype Control
Class
Monoclonal
Type
Antibody
Clone
HTA125
Conjugate
Form
Liquid
Concentration
1 mg/mL
Purification
Affinity chromatography
Storage buffer
PBS, pH 7.2
Contains
no preservative
Storage conditions
4° C
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_469280
Product Specific Information
Description: The HTA125 monoclonal antibody reacts with human Toll-like receptor 4 (TLR4). So far, at least ten members of the Toll family have been identified in humans. This family of type I transmembrane proteins is characterized by an extracellular domain with leucine-rich repeats and a cytoplasmic domain with homology to the type I IL-1 receptor. Two of these receptors, TLR2 and TLR4, are pattern recognition receptors and signaling molecules in response to bacterial lipoproteins and have been implicated in innate immunity and inflammation. TLR4 physically associates with another molecule called MD-2, and together with CD14, this complex is responsible for LPS recognition and signaling. TLR4 is expressed by peripheral blood monocytes. HTA125 has been reported to immunoprecipitate human TLR4 (~100 kDa) from transfected cells. Most TLR cell surface expression, especially TLR1 and TLR4, occurs at low levels on monocytes and at even lower levels on other cell types including granulocytes and immature dendritic cells (iDC). Furthermore, a relatively high degree of variability in TLR surface expression has been reported among normal donors.
It is highly recommended that for optimal staining of TLR4, whole blood be stained using the lysed whole blood protocol (found in Best Protocols) rather than Ficoll-gradient prepared normal human peripheral blood cells. The use of a density gradient appears to reduce the staining intensity significantly.
Applications Reported: The HTA125 antibody has been reported for use in flow cytometric analysis. It has also been reported in blocking of LPS-induced cytokine production. For detection of peripheral monocytes, a three step staining protocol is recommended using purified anti-human TLR4 followed by biotin anti-mouse IgG and streptavidin-PE.
Applications Tested: The HTA125 antibody has been tested by flow cytometric analysis of normal human peripheral blood cells. This can be used at less than or equal to 1 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
It is highly recommended that for optimal staining of TLR4, whole blood be stained using the LWB protocol found in Best Protocols rather than Ficoll-gradient prepared normal human peripheral blood cells. The use of a density gradient appears to reduce the staining intensity significantly.
Storage and handling: Use in a sterile environment.
Filtration: 0.2 µm post-manufacturing filtered.
Purity: Greater than 90%, as determined by SDS-PAGE.
Endotoxin Level: Less than 0.001 ng/µg antibody, as determined by LAL assay.
Aggregation: Less than 10%, as determined by HPLC.
Target Information
TLR4 is 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. This receptor is most abundantly expressed in placenta, and in myelomonocytic subpopulation of the leukocytes. Mammalian cells respond to LPS by activating TLR4. TLR4 belongs to the multi-protein complex of lipopolysaccharide (LPS) receptor, containing CD14, LY96 and TLR4, and is involved in signal transduction events induced by lipopolysaccharide (LPS) found in most gram-negative bacteria. TLR4 aids in the recognition of pathogen-associated molecular patterns (PAMPs) 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. Mutations in the TLR4 gene have been associated with differences in LPS responsiveness. Also, several transcript variants of the TLR4 gene have been found, but the protein coding potential of most of them is uncertain. TLR4 is expressed by peripheral blood monocytes and a small population of B-cells and is also expressed in human placenta. Studies with TLR4-deficient mice indicate that the main ligand for TLR is lipopolysaccharide. Consequently, these mice also showed increased susceptibility to Gram-negative sepsis.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Bioinformatics
Protein Aliases: CD284; homolog of Drosophila toll; hToll; Toll-like receptor 4
Gene Aliases: ARMD10; CD284; TLR-4; TLR4; TOLL
UniProt ID: (Human) O00206
Entrez Gene ID: (Human) 7099
activation of MAPK activity
toll-like receptor signaling pathway
B cell proliferation involved in immune response
nitric oxide production involved in inflammatory response
regulation of dendritic cell cytokine production
MyD88-dependent toll-like receptor signaling pathway
MyD88-independent toll-like receptor signaling pathway
inflammatory response
immune response
I-kappaB kinase/NF-kappaB signaling
I-kappaB phosphorylation
positive regulation of platelet activation
positive regulation of gene expression
astrocyte development
detection of fungus
positive regulation of B cell proliferation
lipopolysaccharide-mediated signaling pathway
response to lipopolysaccharide
detection of lipopolysaccharide
interferon-gamma production
negative regulation of interferon-gamma production
negative regulation of interleukin-17 production
negative regulation of interleukin-23 production
negative regulation of interleukin-6 production
negative regulation of tumor necrosis factor production
positive regulation of chemokine production
positive regulation of interferon-alpha production
positive regulation of interferon-beta production
positive regulation of interferon-gamma production
positive regulation of interleukin-1 production
positive regulation of interleukin-10 production
positive regulation of interleukin-12 production
positive regulation of interleukin-6 production
positive regulation of interleukin-8 production
positive regulation of tumor necrosis factor production
negative regulation of MyD88-independent toll-like receptor signaling pathway
toll-like receptor 4 signaling pathway
TRIF-dependent toll-like receptor signaling pathway
T-helper 1 type immune response
macrophage activation
positive regulation of NF-kappaB import into nucleus
positive regulation of tumor necrosis factor biosynthetic process
defense response to bacterium
positive regulation of interleukin-12 biosynthetic process
innate immune response
positive regulation of MHC class II biosynthetic process
positive regulation of interferon-beta biosynthetic process
positive regulation of interleukin-8 biosynthetic process
positive regulation of nitric oxide biosynthetic process
negative regulation of osteoclast differentiation
positive regulation of transcription from RNA polymerase II promoter
positive regulation of JNK cascade
interleukin-1 beta secretion
regulation of cytokine secretion
positive regulation of inflammatory response
defense response to Gram-negative bacterium
positive regulation of NF-kappaB transcription factor activity
positive regulation of nitric-oxide synthase biosynthetic process
intestinal epithelial structure maintenance
positive regulation of macrophage cytokine production
necroptotic process
negative regulation of ERK1 and ERK2 cascade
positive regulation of ERK1 and ERK2 cascade
positive regulation of nucleotide-binding oligomerization domain containing 1 signaling pathway
positive regulation of nucleotide-binding oligomerization domain containing 2 signaling pathway
cellular response to lipopolysaccharide
cellular response to lipoteichoic acid
cellular response to mechanical stimulus
apoptotic signaling pathway
positive regulation of NLRP3 inflammasome complex assembly
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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