6E1Q:
reference: Modification of auxinic phenoxyalkanoic acid herbicides by the acyl acid amido synthetase GH3.15 from Arabidopsis., Sherp AM, Lee SG, Schraft E, Jez JM, J Biol Chem. 2018 Oct 12. pii: RA118.004975. doi: 10.1074/jbc.RA118.004975. PMID: 30315112

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