1BFU:
reference: Organic solvent binding to crystalline subtilisin1 in mostly aqueous media and in the neat solvents., Schmitke JL, Stern LJ, Klibanov AM, Biochem Biophys Res Commun 1998 Jul 20;248(2):273-7. PMID: 9675126

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