4P4Y:
reference: X-ray Crystallographic Structures of Oligomers of Peptides Derived from beta-Microglobulin., Spencer RK, Kreutzer AG, Salveson PJ, Li H, Nowick JS, J Am Chem Soc. 2015 May 12. PMID: 25915729

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