| Strain | Pseudomonas denitrificans ATCC 13867 | 
| GI | 472325306 | 
| Locus Tag | H681_10700 | 
| Description | nitrite extrusion protein, nitrite facilitator | 
| Strain | Pseudomonas aeruginosa 2192 | 
| GI | 254240125 | 
| Locus Tag | PA2G_00765 | 
| Description | nitrate transporter | 
| Strain | Pseudomonas fluorescens Pf0-1 | 
| GI | 77458010 | 
| Locus Tag | Pfl01_1783 | 
| Description | nitrate transporter |