2P4L:
reference: Structure and Sodium Channel Activity of an Excitatory I(1)-Superfamily Conotoxin(,)., Buczek O, Wei D, Babon JJ, Yang X, Fiedler B, Chen P, Yoshikami D, Olivera BM, Bulaj G, Norton RS, Biochemistry. 2007 Sep 4;46(35):9929-9940. Epub 2007 Aug 14. PMID: 17696362

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