1PKL:
reference: The structure of pyruvate kinase from Leishmania mexicana reveals details of the allosteric transition and unusual effector specificity., Rigden DJ, Phillips SE, Michels PA, Fothergill-Gilmore LA, J Mol Biol 1999 Aug 20;291(3):615-35. PMID: 10448041

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