4IQP:
reference: Enhancing the Protective Immune Response against Botulism., Przedpelski A, Tepp WH, Kroken AR, Fu Z, Kim JJ, Johnson EA, Barbieri JT, Infect Immun. 2013 May 13. PMID: 23670557

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