TLR4/HEK293 Stable Cell Line is a stably transfected HEK293 cell line which expresses human Toll-like receptor 4 (TLR4, also designated as CD284). TLR4 mediates immune responses by recognition of lipoplysaccharides (LPS) with the help of LPS-binding protein, CD14 and MD-2. TLR4 stimulation uniquely triggers two signaling pathways named the MyD88-dependent pathway and the TRIF-dependent pathway, which lead to the production of two sets of cytokines such as proinflammatory cytokines and type I interferons/chemokines, respectively. Note that TLR4 in the TLR4/HEK293 stable cell line contains the N-terminal HA tag (Figure 2), which does not interfere with TLR4 activity as confirmed by functional assay (Figure 1). Sequence data: Human TLR4 (accession number NP_612564) MMSASRLAGTLIPAMAFLSCVRPESWEPCVEVVPNITYQCMELN FYKIPDNLPFSTKNLDLSFNPLRHLGSYSFFSFPELQVLDLSRCEIQTIEDGAYQSLS HLSTLILTGNPIQSLALGAFSGLSSLQKLVAVETNLASLENFPIGHLKTLKELNVAHN LIQSFKLPEYFSNLTNLEHLDLSSNKIQSIYCTDLRVLHQMPLLNLSLDLSLNPMNFI QPGAFKEIRLHKLTLRNNFDSLNVMKTCIQGLAGLEVHRLVLGEFRNEGNLEKFDKSA LEGLCNLTIEEFRLAYLDYYLDDIIDLFNCLTNVSSFSLVSVTIERVKDFSYNFGWQH LELVNCKFGQFPTLKLKSLKRLTFTSNKGGNAFSEVDLPSLEFLDLSRNGLSFKGCCS QSDFGTTSLKYLDLSFNGVITMSSNFLGLEQLEHLDFQHSNLKQMSEFSVFLSLRNLI YLDISHTHTRVAFNGIFNGLSSLEVLKMAGNSFQENFLPDIFTELRNLTFLDLSQCQL EQLSPTAFNSLSSLQVLNMSHNNFFSLDTFPYKCLNSLQVLDYSLNHIMTSKKQELQH FPSSLAFLNLTQNDFACTCEHQSFLQWIKDQRQLLVEVERMECATPSDKQGMPVLSLN ITCQMNKTIIGVSVLSVLVVSVVAVLVYKFYFHLMLLAGCIKYGRGENIYDAFVIYSS QDEDWVRNELVKNLEEGVPPFQLCLHYRDFIPGVAIAANIIHEGFHKSRKVIVVVSQH FIQSRWCIFEYEIAQTWQFLSSRAGIIFIVLQKVEKTLLRQQVELYRLLSRNTYLEWE DSVLGRHIFWRRLRKALLDGKSWNPEGTVGTGCNWQEATSI
Application Dilute:
Application:. Functional assay. Culture conditions: Cells should be grown at 37oC with 5% CO2 using DMEM medium (w/ L-Glutamine, 4.5g/L Glucose and Sodium Pyruvate) supplemented with 10% heat-inactivated FBS and 1% Pen/Strep, plus 10 µg/ml of Blasticidin.
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