5BN4:
reference: Structural basis for a unique ATP synthase core complex from Nanoarcheaum Equitans., Mohanty S, Jobichen C, Chichili VP, Velazquez-Campoy A, Low BC, Hogue CW, Sivaraman J, J Biol Chem. 2015 Sep 14. pii: jbc.M115.677492. PMID: 26370083

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