4EHP:
reference: The cytoskeletal protein alpha-catenin unfurls upon binding to vinculin., Rangarajan ES, Izard T, J Biol Chem. 2012 May 25;287(22):18492-9. Epub 2012 Apr 6. PMID: 22493458

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