2MF3:
reference: The insecticidal spider toxin SFI1 is a knottin peptide that blocks the pore of insect voltage-gated sodium channels via a large beta-hairpin loop., Bende NS, Dziemborowicz S, Herzig V, Ramanujam V, Brown GW, Bosmans F, Nicholson GM, King GF, Mobli M, FEBS J. 2015 Jan 5. doi: 10.1111/febs.13189. PMID: 25559770

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).