4HL6:
reference: Function and X-Ray crystal structure of Escherichia coli YfdE., Mullins EA, Sullivan KL, Kappock TJ, PLoS One. 2013 Jul 23;8(7):e67901. doi: 10.1371/journal.pone.0067901. Print 2013. PMID: 23935849

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