2UY6:
reference: Crystal structure of the P pilus rod subunit PapA., Verger D, Bullitt E, Hultgren SJ, Waksman G, PLoS Pathog. 2007 May 18;3(5):e73. PMID: 17511517

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