5XE9:
reference: High-throughput Screening of Small Molecule Inhibitors of the Streptococcus Quorum-sensing Signal Pathway., Ishii S, Fukui K, Yokoshima S, Kumagai K, Beniyama Y, Kodama T, Fukuyama T, Okabe T, Nagano T, Kojima H, Yano T, Sci Rep. 2017 Jun 22;7(1):4029. doi: 10.1038/s41598-017-03567-2. PMID: 28642545

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