1FSA:
reference: Evidence for an active T-state pig kidney fructose 1,6-bisphosphatase: interface residue Lys-42 is important for allosteric inhibition and AMP cooperativity., Lu G, Stec B, Giroux EL, Kantrowitz ER, Protein Sci 1996 Nov;5(11):2333-42. PMID: 8931152

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