1YXW:
reference: Common binding site for disialyllactose and tri-peptide in C-fragment of tetanus neurotoxin., Jayaraman S, Eswaramoorthy S, Kumaran D, Swaminathan S, Proteins 2005 Aug 15;. PMID: 16104015

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