1SCU:
reference: The crystal structure of succinyl-CoA synthetase from Escherichia coli at 2.5-A resolution., Wolodko WT, Fraser ME, James MN, Bridger WA, J Biol Chem 1994 Apr 8;269(14):10883-90. PMID: 8144675

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