3J9M:
reference: Ribosome. The structure of the human mitochondrial ribosome., Amunts A, Brown A, Toots J, Scheres SH, Ramakrishnan V, Science. 2015 Apr 3;348(6230):95-8. doi: 10.1126/science.aaa1193. Epub 2015 Apr, 2. PMID: 25838379

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