1C3B:
reference: The complexed structure and antimicrobial activity of a non-beta-lactam inhibitor of AmpC beta-lactamase., Powers RA, Blazquez J, Weston GS, Morosini MI, Baquero F, Shoichet BK, Protein Sci 1999 Nov;8(11):2330-7. PMID: 10595535

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