| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595635 |
| Locus Tag | PA0438 |
| Description | cytosine permease |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472325761 |
| Locus Tag | H681_12985 |
| Description | cytosine permease |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 161501969 |
| Locus Tag | PFL_4032 |
| Description | cytosine permease |