3LD0:
reference: Bacillus licheniformis Anti-TRAP can assemble into two types of dodecameric particles with the same symmetry but inverted orientation of trimers., Shevtsov MB, Chen Y, Isupov MN, Leech A, Gollnick P, Antson AA, J Struct Biol. 2010 Feb 4. PMID: 20138150

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