5WHH:
reference: Crystal Structures of Anti-apoptotic BFL-1 and Its Complex with a Covalent Stapled Peptide Inhibitor., Harvey EP, Seo HS, Guerra RM, Bird GH, Dhe-Paganon S, Walensky LD, Structure. 2018 Jan 2;26(1):153-160.e4. doi: 10.1016/j.str.2017.11.016. Epub 2017, Dec 21. PMID: 29276033

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