3E8Y:
reference: X-ray structure of native scorpion toxin BmBKTx1 by racemic protein crystallography using direct methods., Mandal K, Pentelute BL, Tereshko V, Kossiakoff AA, Kent SB, J Am Chem Soc. 2009 Feb 4;131(4):1362-3. PMID: 19133782

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