4YIN:
reference: Structural insights into the loss of penicillinase and the gain of ceftazidimase activities by OXA-145 beta-lactamase in Pseudomonas aeruginosa., Meziane-Cherif D, Bonnet R, Haouz A, Courvalin P, J Antimicrob Chemother. 2016 Feb;71(2):395-402. doi: 10.1093/jac/dkv375. Epub, 2015 Nov 14. PMID: 26568564

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