5K3S:
reference: Comprehensive understanding of acetohydroxyacid synthase inhibition by different herbicide families., Garcia MD, Nouwens A, Lonhienne TG, Guddat LW, Proc Natl Acad Sci U S A. 2017 Feb 14;114(7):E1091-E1100. doi:, 10.1073/pnas.1616142114. Epub 2017 Jan 30. PMID: 28137884

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