6FKH:
reference: Structure, mechanism, and regulation of the chloroplast ATP synthase., Hahn A, Vonck J, Mills DJ, Meier T, Kuhlbrandt W, Science. 2018 May 11;360(6389). pii: 360/6389/eaat4318. doi:, 10.1126/science.aat4318. PMID: 29748256

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