| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Xanthobacter sp. DMC5 | GFF3780 | | Transcriptional regulatory protein FixJ | insig. | 100 | 100 |
| | Dechlorosoma suillum PS | Dsui_3386 | | response regulator | no data | 41 | 91 |
| o | Rhodopseudomonas palustris CGA009 | TX73_022015 | | response regulator | strong | 42 | 69 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS04575 | | DNA-binding response regulator | insig. | 36 | 91 |
| | Rhodospirillum rubrum S1H | Rru_A1500 | | Signal Transduction Histidine Kinase (STHK) with CheB and CheR activity (NCBI) | insig. | 39 | 81 |
| | Dechlorosoma suillum PS | Dsui_2511 | | response regulator | insig. | 33 | 94 |
| | Agrobacterium fabrum C58 | Atu4805 | | two component sensor kinase/response regulator hybrid | insig. | 34 | 91 |
| | Dinoroseobacter shibae DFL-12 | Dshi_2568 | | two component transcriptional regulator, LuxR family (RefSeq) | cofit | 34 | 93 |
| | Marinobacter adhaerens HP15 | HP15_1037 | | two-component response regulator | sig. | 31 | 91 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4674 | | Nitrogen regulation protein NR(I) | no data | 34 | 91 |
| | Agrobacterium fabrum C58 | Atu4773 | | two component response regulator | strong | 34 | 83 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS33050 | | LuxR family transcriptional regulator | insig. | 40 | 61 |
| | Sphingobium sp. HT1-2 | GFF3048 | | Two-component nitrogen fixation transcriptional regulator FixJ | cofit | 35 | 77 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3828 | | two component transcriptional regulator, LuxR family | insig. | 33 | 89 |
| | Sphingobium sp. HT1-2 | GFF5392 | | Two-component nitrogen fixation transcriptional regulator FixJ | cofit | 32 | 89 |
| | Azospirillum sp. SherDot2 | MPMX19_04701 | | Transcriptional regulatory protein FixJ | insig. | 36 | 89 |
| | Shewanella amazonensis SB2B | Sama_2399 | | response regulator receiver protein (RefSeq) | insig. | 34 | 86 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS07490 | | response regulator | no data | 32 | 88 |
| | Rhodopseudomonas palustris CGA009 | TX73_008645 | | response regulator | cofit | 33 | 95 |
| | Dechlorosoma suillum PS | Dsui_1581 | | response regulator | strong | 35 | 77 |
| | Variovorax sp. OAS795 | ABID97_RS16350 | | response regulator | no data | 31 | 93 |
| | Serratia liquefaciens MT49 | IAI46_06840 | | response regulator transcription factor | insig. | 31 | 84 |
| | Sinorhizobium meliloti 1021 | SMa1227 | | response regulator FixJ | cofit | 34 | 85 |
| | Variovorax sp. SCN45 | GFF192 | | Nitrogen regulation protein NR(I), GlnG (=NtrC) | no data | 34 | 95 |
| | Marinobacter adhaerens HP15 | HP15_1053 | | two component transcriptional regulator, LuxR family | sig. | 33 | 84 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS13785 | | response regulator transcription factor | cofit | 32 | 88 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS04570 | | DNA-binding response regulator | no data | 32 | 84 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_25420 | | chemotaxis protein CheY | insig. | 31 | 90 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS06635 | | sigma-54 dependent transcriptional regulator | strong | 31 | 91 |
| | Azospirillum sp. SherDot2 | MPMX19_03016 | | Response regulator protein TmoT | no data | 34 | 91 |
| | Sphingobium sp. HT1-2 | GFF5226 | | Two-component nitrogen fixation transcriptional regulator FixJ | insig. | 30 | 89 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_4074 | | two component transcriptional regulator, LuxR family | insig. | 27 | 90 |
| | Sinorhizobium meliloti 1021 | SMa1688 | | Two-component response regulator | insig. | 34 | 88 |
| | Pseudomonas sp. S08-1 | OH686_13325 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | cofit | 38 | 87 |
| | Azospirillum brasilense Sp245 | AZOBR_RS24030 | | chemotaxis protein CheY | no data | 32 | 92 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_685 | | Nitrogen regulation protein NR(I) | no data | 31 | 90 |
| | Shewanella oneidensis MR-1 | SO4157 | | DNA-binding response regulator (NCBI ptt file) | insig. | 31 | 90 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS10740 | | LuxR family transcriptional regulator | insig. | 30 | 91 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_3789 | | two component transcriptional regulator, LuxR family | insig. | 33 | 97 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS21040 | | response regulator | cofit | 29 | 88 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS04170 | | response regulator transcription factor | no data | 35 | 78 |
| | Shewanella loihica PV-4 | Shew_0609 | | two component LuxR family transcriptional regulator (RefSeq) | insig. | 33 | 94 |
| | Sinorhizobium meliloti 1021 | SMa0940 | | Response regulator | insig. | 32 | 84 |
| | Shewanella sp. ANA-3 | Shewana3_0637 | | two component LuxR family transcriptional regulator (RefSeq) | insig. | 35 | 86 |
| | Rhodopseudomonas palustris CGA009 | TX73_022010 | | response regulator FixJ | no data | 33 | 80 |
| | Pantoea sp. MT58 | IAI47_20275 | | response regulator transcription factor | insig. | 32 | 88 |
| | Rhizobium sp. OAE497 | ABIE40_RS15185 | | response regulator | insig. | 30 | 91 |
| | Pseudomonas stutzeri RCH2 | Psest_4132 | | alpha-ketoglutarate DNA-binding response regulator (mifR) (from data) | strong | 31 | 90 |
| | Rhizobium sp. OAE497 | ABIE40_RS23715 | | response regulator | insig. | 30 | 93 |
| | Agrobacterium fabrum C58 | Atu4306 | | two component response regulator | insig. | 34 | 86 |
| | Ralstonia solanacearum GMI1000 | RS_RS01635 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 33 | 88 |
| | Azospirillum brasilense Sp245 | AZOBR_RS24025 | | transcriptional regulator | strong | 32 | 91 |
| | Shewanella sp. ANA-3 | Shewana3_3697 | | two component LuxR family transcriptional regulator (RefSeq) | insig. | 31 | 90 |
| | Paraburkholderia graminis OAS925 | ABIE53_001503 | | FixJ family two-component response regulator | strong | 34 | 79 |
| | Ralstonia solanacearum GMI1000 | RS_RS08045 | | DNA-binding response regulator | cofit | 31 | 94 |
| | Pseudomonas sp. DMC3 | GFF2810 | | Response regulator protein TmoT | cofit | 41 | 58 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_1806 | | Nitrogen regulation protein NR(I) | strong | 31 | 90 |
| | Azospirillum sp. SherDot2 | MPMX19_03015 | | Transcriptional regulatory protein TdiR | no data | 36 | 84 |
| | Azospirillum brasilense Sp245 | AZOBR_RS17625 | | Nodulation protein W | no data | 34 | 84 |
| | Azospirillum sp. SherDot2 | MPMX19_04512 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 32 | 88 |
| | Pseudomonas sp. RS175 | PFR28_03462 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | strong | 32 | 87 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS01680 | | DNA-binding response regulator | no data | 31 | 94 |
| | Ralstonia solanacearum UW163 | UW163_RS14990 | | DNA-binding response regulator | no data | 31 | 94 |
| | Pseudomonas sp. DMC3 | GFF5041 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | cofit | 31 | 90 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04682 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | cofit | 30 | 88 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS37555 | | response regulator | strong | 30 | 82 |
| | Dickeya dadantii 3937 | DDA3937_RS07235 | | response regulator transcription factor | insig. | 29 | 91 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS10795 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 32 | 88 |
| | Ralstonia solanacearum UW163 | UW163_RS02785 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 32 | 88 |
| | Azospirillum brasilense Sp245 | AZOBR_RS23775 | | LuxR family transcriptional regulator | no data | 32 | 96 |
| | Pseudomonas simiae WCS417 | PS417_22645 | | C4-dicarboxylate ABC transporter | sig. | 31 | 87 |
| | Pseudomonas sp. RS175 | PFR28_02521 | | Response regulator protein TmoT | no data | 27 | 98 |
| | Xanthobacter sp. DMC5 | GFF670 | | Response regulator protein TmoT | no data | 36 | 77 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c12690 | | two-component system response regulator | sig. | 34 | 85 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS07355 | | LuxR family transcriptional regulator | no data | 29 | 91 |
| | Lysobacter sp. OAE881 | ABIE51_RS03450 | | response regulator | insig. | 34 | 89 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS22520 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 32 | 88 |
| | Sinorhizobium meliloti 1021 | SM_b21200 | | two-component response regulator protein | insig. | 32 | 84 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS13480 | | response regulator transcription factor | no data | 31 | 94 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS15805 | | DNA-binding response regulator | no data | 31 | 94 |
| | Pseudomonas sp. RS175 | PFR28_02132 | | Response regulator protein TmoT | insig. | 30 | 78 |
| | Pseudomonas segetis P6 | MPMX49_02030 | | Response regulator protein TodT | insig. | 27 | 88 |
| | Pseudomonas putida KT2440 | PP_4371 | | two component system AtoC DNA-binding transcriptional activator | strong | 35 | 74 |
| | Xanthobacter sp. DMC5 | GFF3781 | | Transcriptional regulatory protein FixJ | insig. | 29 | 95 |
| | Pseudomonas segetis P6 | MPMX49_00215 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 32 | 90 |
| | Xanthobacter sp. DMC5 | GFF483 | | Sensor histidine kinase RcsC | insig. | 37 | 78 |
| | Caulobacter crescentus NA1000 | CCNA_00795 | | two-component response regulator FixJ | strong | 33 | 88 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_00795 | | two-component response regulator FixJ | cofit | 33 | 88 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS11910 | | chemotaxis protein CheY | no data | 32 | 92 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_5088 | | regulatory protein, LuxR:Response regulator receiver | strong | 29 | 95 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_5088 | | regulatory protein, LuxR:Response regulator receiver | insig. | 29 | 95 |
| | Xanthobacter sp. DMC5 | GFF4036 | | Response regulator protein TodT | no data | 28 | 84 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_02037 | | two component, sigma54 specific, transcriptional regulator, NtrC subfamily, Fis family | cofit | 33 | 91 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS25955 | | transcriptional regulator | no data | 31 | 90 |
| | Pseudomonas sp. DMC3 | GFF1098 | | Response regulator protein TodT | no data | 29 | 96 |
| | Rhizobium sp. OAE497 | ABIE40_RS15425 | | sigma-54 dependent transcriptional regulator | strong | 29 | 87 |
| | Paraburkholderia graminis OAS925 | ABIE53_001061 | | FixJ family two-component response regulator | sig. | 32 | 84 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5487 | | Nitrogen regulation protein NR(I) | strong | 34 | 77 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_25855 | | DNA-binding response regulator | insig. | 32 | 90 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS24280 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 30 | 87 |