4EQ7:
reference: Structural basis for selective GABA binding in bacterial pathogens., Planamente S, Mondy S, Hommais F, Vigouroux A, Morera S, Faure D, Mol Microbiol. 2012 Oct 9. doi: 10.1111/mmi.12043. PMID: 23043322

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