1WXZ:
reference: Rational design of non-nucleoside, potent, and orally bioavailable adenosine deaminase inhibitors: predicting enzyme conformational change and metabolism., Terasaka T, Tsuji K, Kato T, Nakanishi I, Kinoshita T, Kato Y, Kuno M, Inoue T, Tanaka K, Nakamura K, J Med Chem 2005 Jul 28;48(15):4750-3. PMID: 16033254

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