2JTY:
reference: Structure, Folding and Stability of FimA, the Main Structural Subunit of Type 1 Pili from Uropathogenic Escherichia coli Strains., Puorger C, Vetsch M, Wider G, Glockshuber R, J Mol Biol. 2011 Jul 27. PMID: 21816158

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