2GYI:
reference: Design, synthesis, and characterization of a potent xylose isomerase inhibitor, D-threonohydroxamic acid, and high-resolution X-ray crystallographic structure of the enzyme-inhibitor complex., Allen KN, Lavie A, Petsko GA, Ringe D, Biochemistry 1995 Mar 21;34(11):3742-9. PMID: 7893671

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