4EBR:
reference: Structure of the autophagic E2 enzyme Atg10., Hong SB, Kim BW, Kim JH, Song HK, Acta Crystallogr D Biol Crystallogr. 2012 Oct;68(Pt 10):1409-17. Epub 2012 Sep, 18. PMID: 22993095

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