| Strain | Pseudomonas fluorescens SBW25 |
| GI | 229589609 |
| Locus Tag | PFLU2111 |
| Description | cytosine permease |
| Strain | Pseudomonas fluorescens Pf0-1 |
| GI | 77460000 |
| Locus Tag | Pfl01_3778 |
| Description | cytosine permease |
| Strain | Pseudomonas putida NBRC 14164 |
| GI | 512685621 |
| Locus Tag | PP4_25640 |
| Description | cytosine transporter |