3KLQ:
reference: Crystal structure of the minor pilin FctB reveals determinants of Group A streptococcal pilus anchoring., Linke C, Young PG, Kang HJ, Bunker RD, Middleditch MJ, Caradoc-Davies TT, Proft T, Baker EN, J Biol Chem. 2010 Jun 25;285(26):20381-9. Epub 2010 Apr 27. PMID: 20427291

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