| 3BLM: reference: Refined crystal structure of beta-lactamase from Staphylococcus aureus PC1 at 2.0 A resolution., Herzberg O, J Mol Biol 1991 Feb 20;217(4):701-19. PMID: 2005620 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).