1FJ9:
reference: Tryptophan fluorescence reveals the conformational state of a dynamic loop in recombinant porcine fructose-1,6-bisphosphatase., Nelson SW, Iancu CV, Choe JY, Honzatko RB, Fromm HJ, Biochemistry 2000 Sep 12;39(36):11100-6. PMID: 10998248

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