5KS8:
reference: A distinct holoenzyme organization for two-subunit pyruvate carboxylase., Choi PH, Jo J, Lin YC, Lin MH, Chou CY, Dietrich LE, Tong L, Nat Commun. 2016 Oct 6;7:12713. doi: 10.1038/ncomms12713. PMID: 27708276

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