| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431926151 |
| Locus Tag | Psest_0980 |
| Description | transcription termination factor NusA |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472327374 |
| Locus Tag | H681_21065 |
| Description | transcription elongation factor NusA |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644100 |
| Locus Tag | HCH_01238 |
| Description | transcription elongation factor NusA |