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Toll-like receptors and their ligands
| Toll-like receptor | Ligand |
| TLR1 | Lipopeptides |
| TLR2 | Lipoprotein, lipoteichoic acid, others |
| TLR3 | Double-stranded RNA |
| TLR4 | Lipopolysaccharide (LPS) |
| TLR5 | Flagellin |
| TLR6 | Lipoprotein, lipoteichoic acid, others |
| TLR7 | Viral RNA |
| TLR8 | Viral RNA |
| TLR9 | Unmethylated CpG-containing DNA |
| TLR10 | Unknown |
| TLR11 | Profillin |
There are currently over ten known Toll-like receptors that bind microbial associated molecular patterns (MAMPs) from bacteria, fungi and viruses.
