2FJI:
reference: The structure of the exocyst subunit Sec6p defines a conserved architecture with diverse roles., Sivaram MV, Furgason ML, Brewer DN, Munson M, Nat Struct Mol Biol. 2006 Jun;13(6):555-6. Epub 2006 May 14. PMID: 16699513

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