4ZTE:
reference: Crystal Structure of Human E-Cadherin-EC1EC2 in Complex with a Peptidomimetic Competitive Inhibitor of Cadherin Homophilic Interaction., Nardone V, Lucarelli AP, Dalle Vedove A, Fanelli R, Tomassetti A, Belvisi L, Civera M, Parisini E, J Med Chem. 2016 May 26;59(10):5089-94. doi: 10.1021/acs.jmedchem.5b01487. Epub, 2016 May 3. PMID: 27120112

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