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. 2020 Dec 11;9:100056. doi: 10.1016/j.ynpai.2020.100056

Fig. 2.

Fig. 2

Bacterial PAMPs that cause nociception. Cell wall components of Gram-negative bacteria, including Lipopolysaccharide (LPS), can activates nociceptors through either neuronal TLR4 or direct signaling to the transient receptor potential cation channel subfamily A member 1 (TRPA1) ion channel. Gram-negative bacteria can also activate nociceptors through binding of bacterial flagellin to TLR5, however it is unclear how that leads to neuronal activation. Image created with BioRender.com.