1TDL:
reference: Inhibitor-resistant class A beta-lactamases: consequences of the Ser130-to-Gly mutation seen in Apo and tazobactam structures of the SHV-1 variant., Sun T, Bethel CR, Bonomo RA, Knox JR, Biochemistry 2004 Nov 9;43(44):14111-7. PMID: 15518561

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