Human TLR4 Antibody

Catalog #: MAB1478
4 Citations Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB1478
MAB1478-SP

All TLR4 Antibodies

Product Details

Citations (4)

Supplemental Products

Reviews

Summary Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human TLR4 Antibody Summary

Species Reactivity

Human

Specificity

Detects human TLR4 in direct ELISAs and Western blots. Shows approximately 25% cross‑reactivity with recombinant mouse (rm) TLR4 and no cross-reactivity with recombinant human TLR1, 2, 3, or rmTLR6.

Source

Monoclonal Mouse IgG_2B Clone # 285227

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

Mouse myeloma cell line NS0-derived recombinant human TLR4
Glu24-Lys631
Accession # O00206

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

Recombinant Human TLR4/MD‑2 Complex (Catalog # 3146-TM)

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: TLR4

TLR4 is a 100 kDa type I transmembrane glycoprotein that belongs to the mammalian Toll-Like Receptor family of pathogen pattern recognition molecules. MD-2, also known as ESOP-1, is a 25 kDa secreted protein that is required for TLR4-mediated responses to bacterial lipopolysaccharide (LPS) (1-3). The human TLR4 cDNA encodes an 839 amino acid (aa) precursor that contains a 23 aa signal sequence, a 608 aa extracellular domain (ECD), a 21 aa transmembrane segment, and a 187 aa cytoplasmic domain. TLR4 contains 21 leucine rich repeats in its ECD and one cytoplasmic Toll/IL-1 receptor (TIR) domain (4). The ECD of human TLR4 shares approximately 25% aa sequence identity with other TLRs and 60-74% aa sequence identity with bovine, equine, feline, mouse, rat, and porcine TLR4. The human MD‑2 cDNA encodes a 160 aa precursor with an 18 aa signal sequence (5). Human MD-2 shares 20% aa sequence identity with MD-1 and 62-64% aa sequence identity with bovine, mouse, and rat MD-2. MD-2 associates with TLR4 on monocytes, macrophages, dendritic cells, and B cells (5-7). MD-2 expression is required for cell surface localization of TLR4 and for optimal LPS-induced TLR4 signaling (7, 8). MD-2 also forms soluble disulfide-linked homo-oligomers which can interact with TLR4 (6). Through a domain separate from its TLR4-binding domain, MD-2 extracts LPS from circulating CD14-LPS complexes and carries the LPS into a ternary complex with TLR4 (9-11). The interaction of MD-2/LPS with TLR4 induces receptor oligomerization and the triggering of an inflammatory response (12). Increased levels of plasma MD-2 in septic shock patients sensitizes MD-2 non-expressing epithelial cells to LPS and promotes widespread tissue inflammation (13).

References

Gangloff, M. and N.J. Gay (2004) Trends Biochem. Sci. 29:294.
Palsson-McDermott, E.M. and L.A. O’Neill (2004) Immunology 113:153.
Miyake, K. (2004) Semin. Immunol. 16:11.
Medzhitov, R. et al. (1997) Nature 388:394.
Shimazu, R. et al. (1999) J. Exp. Med. 189:1777.
Visintin, A. et al. (2001) Proc. Natl. Acad. Sci. USA 98:12156.
Akashi, S. et al. (2000) J. Immunol. 164:3471.
Nagai, Y. et al. (2002) Nat. Immunol. 3:667.
Re, F. and J.L. Strominger (2003) J. Immunol. 171:5272.
Kennedy, M.N. et al. (2004) J. Biol. Chem. 279:34698.
Gioannini, T.L. et al. (2004) Proc. Natl. Acad. Sci. USA 101:4186.
Saitoh, S. et al. (2004) J. Endotoxin Res. 10:257.
Pugin, J. et al. (2004) Blood 104:4071.

Long Name

Toll-like Receptor 4

Entrez Gene IDs

7099 (Human); 21898 (Mouse); 29260 (Rat)

Alternate Names

ARMD10; CD_antigen: CD284; CD284 antigen; CD284; EC 3.2.2.6; EC:3.2.2.6; homolog of Drosophila toll; hToll; TLR4; TLR-4; toll like receptor 4 protein; TOLL; toll-like receptor 4

Product Datasheets

Product Datasheet

COA

SDS

Related Research Areas

Citations for Human TLR4 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

4 Citations: Showing 1 - 4
Filter your results:

Filter by:

Effects of 8-Week Hatha Yoga Training on Metabolic and Inflammatory Markers in Healthy, Female Chinese Subjects: A Randomized Clinical Trial
Authors: Neng Chen, Xianghou Xia, Liqiang Qin, Li Luo, Shufen Han, Guiping Wang et al.
BioMed Research International
LYSMD3: A mammalian pattern recognition receptor for chitin
Authors: X He, BA Howard, Y Liu, AK Neumann, L Li, N Menon, T Roach, SD Kale, DC Samuels, H Li, T Kite, H Kita, TY Hu, M Luo, CN Jones, UJ Okaa, DL Squillace, BS Klein, CB Lawrence
Cell Reports, 2021-07-20;36(3):109392.
Species: Human
Sample Types: Cell Lysates
Applications: Western Blot
Mycobacterium bovis bacilli Calmette-Guerin regulates leukocyte recruitment by modulating alveolar inflammatory responses.
Authors: Andersson M, Lutay N, Hallgren O, Westergren-Thorsson G, Svensson M, Godaly G
Innate Immun, 2011-11-04;18(3):531-40.
Species: Human
Sample Types: Cell Lysates, Whole Cells
Applications: Flow Cytometry, ICC, Neutralization, Western Blot
Soluble forms of Toll-like receptor 4 are present in human saliva and modulate tumour necrosis factor-alpha secretion by macrophage-like cells.
Authors: Zunt SL, Burton LV, Goldblatt LI, Dobbins EE, Srinivasan M
Clin. Exp. Immunol., 2009-03-09;156(2):285-93.
Species: Human
Sample Types: Saliva
Applications: ELISA Development