4XHF:
reference: Molecular insights into the enzymatic diversity of flavin-trafficking protein (Ftp; formerly ApbE) in flavoprotein biogenesis in the bacterial periplasm., Deka RK, Brautigam CA, Liu WZ, Tomchick DR, Norgard MV, Microbiologyopen. 2015 Dec 2. doi: 10.1002/mbo3.306. PMID: 26626129

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