1ZE8:
reference: Carbonic anhydrase inhibitors: stacking with Phe131 determines active site binding region of inhibitors as exemplified by the X-ray crystal structure of a membrane-impermeant antitumor sulfonamide complexed with isozyme II., Menchise V, De Simone G, Alterio V, Di Fiore A, Pedone C, Scozzafava A, Supuran CT, J Med Chem 2005 Sep 8;48(18):5721-7. PMID: 16134940

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