2IBF:
reference: Vinculin binding in its closed conformation by a helix addition mechanism., Nhieu GT, Izard T, EMBO J. 2007 Oct 31;26(21):4588-96. Epub 2007 Oct 11. PMID: 17932491

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