3KYQ:
reference: Lipid-Induced conformational switch controls fusion activity of longin domain SNARE Ykt6., Wen W, Yu J, Pan L, Wei Z, Weng J, Wang W, Ong YS, Tran TH, Hong W, Zhang M, Mol Cell. 2010 Feb 12;37(3):383-95. PMID: 20159557

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