7COJ:
reference: Crystal Structure of beta-Carbonic Anhydrase CafA from the Fungal Pathogen Aspergillus fumigatus., Kim S, Yeon J, Sung J, Jin MS, Mol Cells. 2020 Sep 30;43(9):831-840. doi: 10.14348/molcells.2020.0168. PMID: 32975213

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