1MTX:
reference: Determination of the three-dimensional structure of margatoxin by 1H, 13C, 15N triple-resonance nuclear magnetic resonance spectroscopy., Johnson BA, Stevens SP, Williamson JM, Biochemistry 1994 Dec 20;33(50):15061-70. PMID: 7999764

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