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293/TLR4

293/hTLR4A Unit size Cat. code Docs Qty Price
HEK 293 cells stably transfected with the human TLR4a gene
3-7 x 10e6 cells
293-htlr4a
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$738.00
293/mTLR4 Unit size Cat. code Docs Qty Price
HEK 293 cells stably transfected with the murine TLR4 gene
3-7 x 10e6 cells
293-mtlr4
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$738.00

293/TLR4 cells were obtained by stable transfection of HEK293 cells with a pUNO-TLR4 plasmid which expresses the human or murine TLR4 gene.

The control cell line of 293/TLR4 cells is 293/null.

 

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Specifications

Antibiotic resistance: blasticidin

Growth medium: DMEM, 4.5 g/l glucose, 2-4 mM L-glutamine, 10% (v/v) fetal bovine serum, 50 U/ml penicillin, 50 μg/ml streptomycin, 100 μg/ml Normocin™

Guaranteed mycoplasma-free

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Contents

Shipped on dry ice

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Description

TLR4, the first human TLR identified, is the receptor for Gram-negative lipopolysaccharide (LPS). The TLR4 gene was shown to be mutated in C3H/HeJ and C57BL/10ScCr mice, both of which are low responders to LPS [1]. However, TLR4 alone is not sufficient to confer LPS responsiveness. TLR4 requires MD-2, a secreted molecule, to functionally interact with LPS [2]. Furthermore, a third protein, called CD14, was shown to participate in LPS signaling, leading to NF-κB translocation. This signaling is mediated through several adaptor proteins: MyD88 TIRAP/Mal [3] , TRIF/TICAM1 and TRAM/TICAM2 [4].

 

1. Poltorak A. et al., 1998. Defective LPS signaling in C3H/HeJ and C57BL/10ScCr mice: mutations in Tlr4 gene. Science, 282(5396):2085-8
2. Shimazu R. et al., 1999. MD-2, a molecule that confers lipopolysaccharide responsiveness on Toll-like receptor 4. J Exp Med, 189(11):1777-82
3. Horng T. GM. Barton, and R. Medzhitov, 2001. TIRAP: an adapter molecule in the Toll signaling pathway. Nat Immunol, 2(9):835-41
4. Fitzgerald KA. et al., 2003. LPS-TLR4 Signaling to IRF-3/7 and NF-{kappa}B Involves the Toll Adapters TRAM and TRIF. J Exp Med. 198(7):1043-1055.

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