Human TLR4 Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human TLR4 in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human (rh) TLR1, 2, 3, 5, 7, 8, 10, recombinant mouse (rm) TLR4/MD-2 complex, rmTLR6, rhIL-1RI, rhIL-1RII, rhIL-1RAcP, rhST2, rhIL-18R, rhIL-1Rrp2, rhIL-18AcPLR, rhSIGIRR, rhTIGIRR, rhMD-1, rhMD-2, or rmMD-2 is observed.
  • Source
    Monoclonal Mouse IgG1 Clone # 610029
  • 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 as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    2 µg/mL
    See below
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.
Data Examples
Detection of Human TLR4 by Western Blot. Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line. PVDF Membrane was probed with 2 µg/mL of Mouse Anti-Human TLR4 Monoclonal Antibody (Catalog # MAB14782) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for TLR4 at approximately 120 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.5 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • 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:
    1. Gangloff, M. and N.J. Gay (2004) Trends Biochem. Sci. 29:294.
    2. Palsson-McDermott, E.M. and L.A. O’Neill (2004) Immunology 113:153.
    3. Miyake, K. (2004) Semin. Immunol. 16:11.
    4. Medzhitov, R. et al. (1997) Nature 388:394.
    5. Shimazu, R. et al. (1999) J. Exp. Med. 189:1777.
    6. Visintin, A. et al. (2001) Proc. Natl. Acad. Sci. USA 98:12156.
    7. Akashi, S. et al. (2000) J. Immunol. 164:3471.
    8. Nagai, Y. et al. (2002) Nat. Immunol. 3:667.
    9. Re, F. and J.L. Strominger (2003) J. Immunol. 171:5272.
    10. Kennedy, M.N. et al. (2004) J. Biol. Chem. 279:34698.
    11. Gioannini, T.L. et al. (2004) Proc. Natl. Acad. Sci. USA 101:4186.
    12. Saitoh, S. et al. (2004) J. Endotoxin Res. 10:257.
    13. 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; CD284 antigen; CD284; hTollhomolog of Drosophila toll; TLR4; TOLL; toll-like receptor 4
Related Research Areas
Isotype Controls
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Mouse IgG1 Isotype Control

Ctrl MAB002R 1
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Secondary Antibodies
Description Application Cat# Citations Images  

Mouse IgG HRP-conjugated Antibody

WB HAF007 26  
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Mouse F(ab)2 IgG (H+L) PE-conjugated Antibody

Flow F0102B 10  
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Donkey Anti-Mouse IgG NorthernLights™ NL557-conjugate Antibody

Flow, IHC, ICC NL007 9
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Donkey Anti-Mouse IgG Biotinylated Antibody

WB BAF018 1
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Mouse IgG HRP-conjugated Antibody

WB HAF018 9  
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Mouse F(ab)2 IgG (H+L) APC-conjugated Antibody

Flow F0101B 2  
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Donkey Anti-Mouse IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL008 8
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Donkey Anti-Mouse IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL009 5
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Mouse IgG Antibody

WB AF007 4
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Goat Anti-Mouse IgG Biotinylated Antibody

WB BAF007 4
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Mouse F(ab)2 IgG (H+L) Fluorescein-conjugated Antibody

Flow F0103B 5  
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Mouse/Rabbit IgG VisUCyte HRP Polymer Antibody

IHC VC002  
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Mouse IgG VisUCyte HRP Polymer Antibody

IHC VC001  
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Goat Anti-Mouse IgG Fc Affinity Purified Polyclonal Ab

G-202-C 2
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Mouse F(ab)2 IgG (H+L) PerCP-conjugated Antibody

Flow F0114  
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