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. Author manuscript; available in PMC: 2022 Mar 28.
Published in final edited form as: Nat Biomed Eng. 2021 Sep 13;5(9):1099–1109. doi: 10.1038/s41551-021-00793-y

Fig. 1 |. S1SCBs and peptide selection.

Fig. 1 |

a, Schematic of the sodium ion channel. The S1SCB-binding site is labelled with a red dashed oval. b,c, The molecular structures of TTX (b) and STX (c). The key portion that interacts with the sodium channel is highlighted in purple. d, Molecular structures of the key peptide sequences from the S1SCB-binding site.