| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116051411 |
| Locus Tag | PA14_20190 |
| Description | copper ABC transporter periplasmic substrate-binding protein |
| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431925983 |
| Locus Tag | Psest_0794 |
| Description | parallel beta-helix repeat (two copies) |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83646127 |
| Locus Tag | HCH_03387 |
| Description | nitrous oxidase accessory protein |