3LXE:
reference: The first example of a significant active site conformational rearrangement in a carbonic anhydrase-inhibitor adduct: the carbonic anhydrase I-topiramate complex., Alterio V, Monti SM, Truppo E, Pedone C, Supuran CT, De Simone G, Org Biomol Chem. 2010 Aug 7;8(15):3528-33. Epub 2010 May 27. PMID: 20505865

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