1A0M:
reference: The 1.1 A resolution crystal structure of [Tyr15]EpI, a novel alpha-conotoxin from Conus episcopatus, solved by direct methods., Hu SH, Loughnan M, Miller R, Weeks CM, Blessing RH, Alewood PF, Lewis RJ, Martin JL, Biochemistry 1998 Aug 18;37(33):11425-33. PMID: 9708977

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