1PT7:
reference: The crystal structure of the Escherichia coli YfdW gene product reveals a new fold of two interlaced rings identifying a wide family of CoA transferases., Gruez A, Roig-Zamboni V, Valencia C, Campanacci V, Cambillau C, J Biol Chem 2003 Sep 5;278(36):34582-6. Epub 2003 Jul 3. PMID: 12844490

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