6MDM:
reference: Structural principles of SNARE complex recognition by the AAA+ protein NSF., White KI, Zhao M, Choi UB, Pfuetzner RA, Brunger AT, Elife. 2018 Sep 10;7. pii: 38888. doi: 10.7554/eLife.38888. PMID: 30198481

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