1FBP:
reference: Crystal structure of fructose-1,6-bisphosphatase complexed with fructose 6-phosphate, AMP, and magnesium., Ke HM, Zhang YP, Lipscomb WN, Proc Natl Acad Sci U S A 1990 Jul;87(14):5243-7. PMID: 2164670

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