3Q9G:
reference: Characteristics of Amyloid-Related Oligomers Revealed by Crystal Structures of Macrocyclic beta-Sheet Mimics., Liu C, Sawaya MR, Cheng PN, Zheng J, Nowick JS, Eisenberg D, J Am Chem Soc. 2011 May 4;133(17):6736-44. Epub 2011 Apr 7. PMID: 21473620

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