4OOJ:
reference: The structure of the N-terminal domain of the Legionella protein SidC., Gazdag EM, Schobel S, Shkumatov AV, Goody RS, Itzen A, J Struct Biol. 2014 Apr;186(1):188-94. doi: 10.1016/j.jsb.2014.02.003. Epub 2014 , Feb 17. PMID: 24556577

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