6QFJ:
reference: From conservation to structure, studies of magnetosome associated cation diffusion facilitators (CDF) proteins in Proteobacteria., Keren-Khadmy N, Zeytuni N, Kutnowski N, Perriere G, Monteil C, Zarivach R, PLoS One. 2020 Apr 20;15(4):e0231839. doi: 10.1371/journal.pone.0231839., eCollection 2020. PMID: 32310978

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