3MIX:
reference: FlhA provides the adaptor for coordinated delivery of late flagella building blocks to the type III secretion system., Bange G, Kummerer N, Engel C, Bozkurt G, Wild K, Sinning I, Proc Natl Acad Sci U S A. 2010 Jun 2. PMID: 20534509

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