3D9X:
reference: Structure of the head of the Bartonella adhesin BadA., Szczesny P, Linke D, Ursinus A, Bar K, Schwarz H, Riess TM, Kempf VA, Lupas AN, Martin J, Zeth K, PLoS Pathog. 2008 Aug 8;4(8):e1000119. PMID: 18688279

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