6XPI:
reference: Symmetry breaking and structural polymorphism in a bacterial microcompartment shell protein for choline utilization., Ochoa JM, Nguyen VN, Nie M, Sawaya MR, Bobik TA, Yeates TO, Protein Sci. 2020 Sep 4. doi: 10.1002/pro.3941. PMID: 32885887

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