5F9Q:
reference: The Crystal Structure of the YknZ Extracellular Domain of ABC Transporter YknWXYZ from Bacillus amyloliquefaciens., Xu Y, Guo J, Wang L, Jiang R, Jin X, Liu J, Fan S, Quan CS, Ha NC, PLoS One. 2016 May 31;11(5):e0155846. doi: 10.1371/journal.pone.0155846., eCollection 2016. PMID: 27243566

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