1MBL:
reference: A catalytically-impaired class A beta-lactamase: 2 A crystal structure and kinetics of the Bacillus licheniformis E166A mutant., Knox JR, Moews PC, Escobar WA, Fink AL, Protein Eng 1993 Jan;6(1):11-8. PMID: 8433965

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