6C0F:
reference: Modular assembly of the nucleolar pre-60S ribosomal subunit., Sanghai ZA, Miller L, Molloy KR, Barandun J, Hunziker M, Chaker-Margot M, Wang J, Chait BT, Klinge S, Nature. 2018 Mar 5. pii: nature26156. doi: 10.1038/nature26156. PMID: 29512650

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