1L2S:
reference: Structure-based discovery of a novel, noncovalent inhibitor of AmpC beta-lactamase., Powers RA, Morandi F, Shoichet BK, Structure (Camb) 2002 Jul;10(7):1013-23. PMID: 12121656

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