5HAS:
reference: The Sec7 N-terminal regulatory domains facilitate membrane-proximal activation of the Arf1 GTPase., Richardson BC, Halaby SL, Gustafson MA, Fromme JC, Elife. 2016 Jan 14;5. pii: e12411. doi: 10.7554/eLife.12411. PMID: 26765562

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