14-9099-37

antibody from Invitrogen Antibodies
Targeting: TLR9 CD289
Provider product page for 14-9099-37
Western blot
Immunoprecipitation
Immunohistochemistry
Flow cytometry
Other assay

Antibody data

Product number
14-9099-37 - Provider product page
Provider
Invitrogen Antibodies
Product name
CD289 (TLR9) Monoclonal Antibody (eB72-1665), eBioscience™
Antibody type
Monoclonal
Antigen
Other
Description
Description: eB72-1665 is generated against a portion of human toll-like receptor 9 (aa 273-288), a molecule reported to be expressed predominantly intracellularly. TLR9 is a ~115-120 kDa molecule, which mediates response to unmethylated CpG dinucleotides in bacterial DNA. CpG DNA induces a strong T-helper-1-like inflammatory response and the proliferation of TLR9-positive human B cells. When stimulated with CpG DNA, TLR9-deficient (TLR9-/-) mice lacked splenocyte proliferation, inflammatory cytokine production from macrophages, and dendritic cell maturation, as compared with normal mice. To date, at least twelve members of the Toll family have been identified. 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. Members of the TLR family are involved in recognition and response to different microbial components including lipoproteins, peptidoglycans, and nucleic acids and play important roles in innate immunity and inflammation. TLR9 is not detected by flow cytometry using this antibody on lysed whole human blood and/or isolated human PBMC stained for cell surface or intracellular TLR9. This may be due to limitations of antigen detection by flow cytometry. Human pDCs matured in the presence of IL-3 have been reported to stain with eB72-1665 by immunofluorescence microscopy (Nat Immunol. 5:190). Human Epithelial Cell lines were also reported to stain with this mAb (J. Immunol. 173: 1219). Further studies are needed to determine the relationship between mRNA expression and protein detection by flow cytometry. Applications Reported: This eB72-1665 antibody has been reported for use in intracellular flow cytometric analysis, immunoprecipitation, and immunoblotting (WB). (Fluorochrome conjugated eB72-1665 is recommended for use in intracellular flow cytometry.) Preliminary in vitro blocking assays suggested that eB72-1665 may not be effective in blocking of CpG binding. Please contact us for further information. Applications Tested: The eB72-1665 antibody has been tested by intracellular flow cytometric analysis of hTLR9 transfected 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. Purity: Greater than 90%, as determined by SDS-PAGE. Aggregation: Less than 10%, as determined by HPLC. Filtration: 0.2 µm post-manufacturing filtered.
Reactivity
Human
Host
Rat
Isotype
IgG
Antibody clone number
eB72-1665
Vial size
2 mg
Concentration
0.5 mg/mL
Storage
4° C
TLR9 protein structure - 14-9099-37 shown in red.