5H1S:
reference: Cryo-EM structure of the large subunit of the spinach chloroplast ribosome., Ahmed T, Yin Z, Bhushan S, Sci Rep. 2016 Oct 20;6:35793. doi: 10.1038/srep35793. PMID: 27762343

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