4PJ0:
reference: Native-like Photosystem II Superstructure at 2.44 A Resolution through Detergent Extraction from the Protein Crystal., Hellmich J, Bommer M, Burkhardt A, Ibrahim M, Kern J, Meents A, Muh F, Dobbek H, Zouni A, Structure. 2014 Nov 4;22(11):1607-15. doi: 10.1016/j.str.2014.09.007. Epub 2014, Oct 30. PMID: 25438669

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