5W3K:
reference: Crystal structures of Staphylococcus aureus ketol-acid reductoisomerase in complex with two transition state analogs that have biocidal activity., Patel K, Teran D, Zheng S, Kandale A, Garcia M, Lv Y, Schembri MA, McGeary RP, Schenk G, Guddat LW, Chemistry. 2017 Oct 4. doi: 10.1002/chem.201704481. PMID: 28975665

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