5AMO:
reference: Olfactomedin-1 has a V-shaped disulfide-linked tetrameric structure., Pronker MF, Bos TG, Sharp TH, Thies-Weesie DM, Janssen BJ, J Biol Chem. 2015 Apr 21. pii: jbc.M115.653485. PMID: 25903135

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