5APZ:
reference: alpha/beta coiled coils., Hartmann MD, Mendler CT, Bassler J, Karamichali I, Ridderbusch O, Lupas AN, Hernandez Alvarez B, Elife. 2016 Jan 15;5. pii: e11861. doi: 10.7554/eLife.11861. PMID: 26771248

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