4KV0:
reference: Combining the tail and the ring approaches for obtaining potent and isoform-selective carbonic anhydrase inhibitors: solution and X-ray crystallographic studies., Bozdag M, Ferraroni M, Nuti E, Vullo D, Rossello A, Carta F, Scozzafava A, Supuran CT, Bioorg Med Chem. 2014 Jan 1;22(1):334-40. doi: 10.1016/j.bmc.2013.11.016. Epub, 2013 Nov 18. PMID: 24300919

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