| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116053873 |
| Locus Tag | PA14_01890 |
| Description | transcriptional regulator PcaQ |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472325381 |
| Locus Tag | H681_11085 |
| Description | pca operon transcription factor PcaQ |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70732702 |
| Locus Tag | PFL_5397 |
| Description | pca operon transcription factor PcaQ |