3V0B:
reference: Botulinum neurotoxin is shielded by NTNHA in an interlocked complex., Gu S, Rumpel S, Zhou J, Strotmeier J, Bigalke H, Perry K, Shoemaker CB, Rummel A, Jin R, Science. 2012 Feb 24;335(6071):977-81. PMID: 22363010

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