3RMY:
reference: Novel ganglioside-mediated entry of botulinum neurotoxin serotype D into neurons., Kroken AR, Karalewitz AP, Fu Z, Kim JJ, Barbieri JT, J Biol Chem. 2011 Jun 1. PMID: 21632541

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