6TDM:
reference: Towards improved understanding of intersubunit interactions in modular polyketide biosynthesis: docking in the enacyloxin IIa polyketide synthase., Risser F, Collin S, Dos Santos-Morais R, Gruez A, Chagot B, Weissman KJ, J Struct Biol. 2020 Jul 24:107581. doi: 10.1016/j.jsb.2020.107581. PMID: 32717326

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