| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472327374 |
| Locus Tag | H681_21065 |
| Description | transcription elongation factor NusA |
| Strain | Pseudomonas aeruginosa 2192 |
| GI | 254244353 |
| Locus Tag | PA2G_05207 |
| Description | N utilization substance protein A |
| Strain | Pseudomonas fluorescens Pf0-1 |
| GI | 77457005 |
| Locus Tag | Pfl01_0778 |
| Description | transcription elongation factor NusA |