1V7A:
reference: Structure-based design and synthesis of non-nucleoside, potent, and orally bioavailable adenosine deaminase inhibitors., Terasaka T, Okumura H, Tsuji K, Kato T, Nakanishi I, Kinoshita T, Kato Y, Kuno M, Seki N, Naoe Y, Inoue T, Tanaka K, Nakamura K, J Med Chem 2004 May 20;47(11):2728-31. PMID: 15139750

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