3STH:
reference: Membrane skeletal association and post-translational allosteric regulation of Toxoplasma gondii GAPDH1., Dubey R, Staker BL, Foe IT, Bogyo M, Myler PJ, Ngo HM, Gubbels MJ, Mol Microbiol. 2017 Feb;103(4):618-634. doi: 10.1111/mmi.13577. Epub 2016 Dec 23. PMID: 27859784

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