1M8P:
reference: Allosteric inhibition via R-state destabilization in ATP sulfurylase from Penicillium chrysogenum., MacRae IJ, Segel IH, Fisher AJ, Nat Struct Biol 2002 Dec;9(12):945-9. PMID: 12426581

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