1ZC2 | A:; B: | CRYSTAL STRUCTURE OF PLASMID-ENCODED CLASS C BETA-LACTAMASE CMY-2 COMPLEXED WITH CITRATE MOLECULE |
2ZC7 | A:; B:; C:; D: | CRYSTAL STRUCTURE OF CLASS C BETA-LACTAMASE ACT-1 |
3ZNY | A: | CRYSTAL STRUCTURE OF THE CLASS A EXTENDED-SPECTRUM BETA-LACTAMASE CTX-M-96, A NATURAL D240G MUTANT DERIVED FROM CTX-M-12 |