5O0U:
reference: The Role of Disulfide Bond Replacements in Analogues of the Tarantula Toxin ProTx-II and Their Effects on Inhibition of the Voltage-Gated Sodium Ion Channel Nav1.7., Wright ZVF, McCarthy S, Dickman R, Reyes FE, Sanchez-Martinez S, Cryar A, Kilford I, Hall A, Takle AK, Topf M, Gonen T, Thalassinos K, Tabor AB, J Am Chem Soc. 2017 Sep 20;139(37):13063-13075. doi: 10.1021/jacs.7b06506. Epub, 2017 Sep 7. PMID: 28880078

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