5JIR:
reference: The Structure of Treponema pallidum Tp0624 Reveals a Modular Assembly of Divergently Functionalized and Previously Uncharacterized Domains., Parker ML, Houston S, Wetherell C, Cameron CE, Boulanger MJ, PLoS One. 2016 Nov 10;11(11):e0166274. doi: 10.1371/journal.pone.0166274., eCollection 2016. PMID: 27832149

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