5IKL:
reference: Structure and substrate selectivity of the 750-kDa alpha6beta6 holoenzyme of geranyl-CoA carboxylase., Jurado AR, Huang CS, Zhang X, Zhou ZH, Tong L, Nat Commun. 2015 Nov 23;6:8986. doi: 10.1038/ncomms9986. PMID: 26593090

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