5HTF:
reference: A structural comparison of Listeria monocytogenes protein chaperones PrsA1 and PrsA2 reveals molecular features required for virulence., Cahoon LA, Freitag NE, Prehna G, Mol Microbiol. 2016 Mar 23. doi: 10.1111/mmi.13367. PMID: 27007641

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