| 1R42: reference: ACE2 X-ray structures reveal a large hinge-bending motion important for inhibitor binding and catalysis., Towler P, Staker B, Prasad SG, Menon S, Tang J, Parsons T, Ryan D, Fisher M, Williams D, Dales NA, Patane MA, Pantoliano MW, J Biol Chem 2004 Apr 23;279(17):17996-8007. Epub 2004 Jan 30. PMID: 14754895 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).