1OQ5:
reference: Unexpected nanomolar inhibition of carbonic anhydrase by COX-2-selective celecoxib: new pharmacological opportunities due to related binding site recognition., Weber A, Casini A, Heine A, Kuhn D, Supuran CT, Scozzafava A, Klebe G, J Med Chem 2004 Jan 29;47(3):550-7. PMID: 14736236

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