| PDB Number | Name | Class | DNA Accession Number | Organism | Description |
| 1M40 | TEM-1 | A | AF309824 | Escherichia coli (plasmid) | |
| 1HZO | Bla-B | A | D37831 | Proteus vulgaris K1 | |
| 1I2S | BEPEN | A | V00093 | Bacillus licheniformis | |
| 1G68 | PSE-4 | A | J05162 | Pseudomonas aeruginosa | Cabenicillinase |
| 1FR6 | Cfre-AmpC | C | AF492447 | Citrobacter freundi | |
| 1.00E+25 | PER-1 | A | Z21957 | Pseudomonas aeruginosa (horizontal transfer) | |
| 1MFO | blaF | A | L25634 | Mycobacterium fortuitum | |
| 1BUE | Nmc-A | A | Z21956 | Enterobacter cloacae | Carbapenemase, Same as Imi-1 |
| 1BZA | Toho-1 | A | AB038771 | Escherichia coli (plasmid) | |
| 1BSG | SABLA | A | M28303 | Streptomyces albus G | |
| 2BLS | AmpC-Eco | C | AF124202 | Escherichia coli | Ampc Beta-Lactamase From Escherichia Coli |
| 3PTE | DD-Pep | DD-pep | M26842 | Streptomyces lividans | |
| 1BLS | AmpC-Ent | C | AF411148 | Enterobacter cloaceae | |
| 3BLM | blaZ | A | AP003139 | Staphylococcus aureus | |
| 1K4F | Oxa-10 | D | XXU37105 | ||
| 1H8Z | Oxa-13 | D | AF315786 | Pseudomonas aeruginosa | |
| 1SHV | SHV-1 | A | M59181 | Klebsiella pneumoniae | |
| 1CI9 | Estb | Esterase | U33634 | Burkholderia gladioli | Dfp-Inhibited Esterase |