3VTX:
reference: Inter-phylum structural conservation of the magnetosome-associated TPR-containing protein, MamA., Zeytuni N, Baran D, Davidov G, Zarivach R, J Struct Biol. 2012 Aug 15. PMID: 22917855

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