3BZC:
reference: Crystal structure and RNA binding of the Tex protein from Pseudomonas aeruginosa., Johnson SJ, Close D, Robinson H, Vallet-Gely I, Dove SL, Hill CP, J Mol Biol. 2008 Apr 11;377(5):1460-73. Epub 2008 Feb 12. PMID: 18321528

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