| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.4669.1 | | Transcriptional regulator NtrC family | strong | 100 | 100 |
| o | Ralstonia solanacearum PSI07 | RPSI07_RS07835 | | sigma-54-dependent Fis family transcriptional regulator | strong | 42 | 98 |
| o | Ralstonia solanacearum GMI1000 | RS_RS25105 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 41 | 97 |
| o | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS23315 | | sigma-54-dependent Fis family transcriptional regulator | strong | 41 | 98 |
| o | Ralstonia solanacearum UW163 | UW163_RS16565 | | sigma-54-dependent Fis family transcriptional regulator | strong | 41 | 98 |
| o | Ralstonia sp. UNC404CL21Col | ABZR87_RS23515 | | sigma-54 dependent transcriptional regulator | strong | 41 | 98 |
| o | Lysobacter sp. OAE881 | ABIE51_RS11765 | | sigma-54 dependent transcriptional regulator | insig. | 44 | 98 |
| o | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_00240 | | two component, sigma54 specific, transcriptional regulator, NtrC subfamily, Fis family | strong | 40 | 98 |
| o | Paraburkholderia sabiae LMG 24235 | QEN71_RS19020 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 97 |
| o | Burkholderia phytofirmans PsJN | BPHYT_RS05575 | | Fis family transcriptional regulator | strong | 39 | 98 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS19345 | | sigma-54 dependent transcriptional regulator | no data | 39 | 97 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS24790 | | sigma-54 dependent transcriptional regulator | cofit | 39 | 98 |
| o | Paraburkholderia graminis OAS925 | ABIE53_001365 | | DNA-binding NtrC family response regulator | strong | 39 | 98 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF3635 | | Nitrogen regulation protein NR(I) | insig. | 40 | 97 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS43250 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 97 |
| o | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS02950 | | sigma-54 dependent transcriptional regulator | insig. | 42 | 88 |
| o | Alteromonas macleodii MIT1002 | MIT1002_02376 | | Transcriptional regulatory protein ZraR | insig. | 38 | 98 |
| | Sphingobium sp. HT1-2 | GFF1148 | | Nitrogen regulation protein NR(I), GlnG (=NtrC) | strong | 37 | 98 |
| o | Variovorax sp. OAS795 | ABID97_RS11955 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 97 |
| | Shewanella amazonensis SB2B | Sama_0125 | | response regulator receiver protein (RefSeq) | strong | 40 | 88 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0137 | | nitrogen regulation protein NR(I) | strong | 38 | 98 |
| | Shewanella loihica PV-4 | Shew_3682 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | strong | 40 | 88 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_07640 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 36 | 99 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS11950 | | nitrogen regulation protein NR(I) | no data | 37 | 98 |
| | Cellulophaga baltica 18 | M666_RS03195 | | sigma-54 dependent transcriptional regulator | insig. | 33 | 97 |
| | Ralstonia solanacearum GMI1000 | RS_RS25110 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 45 | 69 |
| | Shewanella oneidensis MR-1 | SO4718 | | sigma-54 dependent response regulator (NCBI ptt file) | sig. | 38 | 88 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS03980 | | Fis family transcriptional regulator | strong | 38 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2200 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 35 | 99 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS23310 | | sigma-54-dependent Fis family transcriptional regulator | strong | 44 | 69 |
| | Ralstonia solanacearum UW163 | UW163_RS16560 | | sigma-54-dependent Fis family transcriptional regulator | strong | 44 | 69 |
| | Shewanella sp. ANA-3 | Shewana3_4076 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | cofit | 38 | 88 |
| | Azospirillum sp. SherDot2 | MPMX19_04512 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 39 | 98 |
| | Azospirillum sp. SherDot2 | MPMX19_04251 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 39 | 95 |
| | Xanthobacter sp. DMC5 | GFF848 | | DNA-binding transcriptional regulator NtrC | no data | 35 | 99 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS23520 | | sigma-54 dependent transcriptional regulator | insig. | 44 | 69 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS23710 | pilR;inference=COORDINATES | two-component system response regulator PilR | strong | 36 | 99 |
| | Rhodopseudomonas palustris CGA009 | TX73_013420 | | nitrogen regulation protein NR(I) | strong | 36 | 99 |
| | Shewanella sp. ANA-3 | Shewana3_2849 | | sigma-54 dependent trancsriptional regulator (RefSeq) | insig. | 44 | 69 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_00790 | | two-component response regulator PilR | strong | 36 | 99 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS56175 | pilR;inference=COORDINATES | two-component system response regulator PilR | strong | 36 | 99 |
| | Rhodospirillum rubrum S1H | Rru_A1678 | | Nitrogen Metabolism Transcriptional Regulator, NtrC, Fis Family (NCBI) | strong | 36 | 99 |
| | Azospirillum brasilense Sp245 | AZOBR_RS21130 | | Fis family transcriptional regulator | insig. | 39 | 95 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3220 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 36 | 97 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS24805 | | sigma-54 dependent transcriptional regulator | cofit | 46 | 69 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1363 | | PEP-CTERM-box response regulator transcription factor | strong | 40 | 90 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS07840 | | sigma-54-dependent Fis family transcriptional regulator | strong | 44 | 69 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4188 | | Response regulator of zinc sigma-54-dependent two-component system | insig. | 36 | 98 |
| | Azospirillum sp. SherDot2 | MPMX19_01112 | | DNA-binding transcriptional regulator NtrC | no data | 36 | 100 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_14200 | | transcriptional regulator | insig. | 38 | 91 |
| | Azospirillum brasilense Sp245 | AZOBR_RS14430 | | chemotaxis protein CheY | strong | 35 | 100 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS07540 | | sigma-54 dependent transcriptional regulator | insig. | 33 | 98 |
| | Pseudomonas sp. S08-1 | OH686_16390 | | Type IV fimbriae expression regulatory protein PilR | cofit | 37 | 92 |
| | Cellulophaga baltica 18 | M666_RS02825 | | sigma-54 dependent transcriptional regulator | cofit | 34 | 98 |
| | Pseudomonas stutzeri RCH2 | Psest_0705 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 36 | 98 |
| | Bosea sp. OAE506 | ABIE41_RS16785 | | nitrogen regulation protein NR(I) | insig. | 34 | 99 |
| | Agrobacterium fabrum C58 | Atu1446 | | two component response regulator | strong | 35 | 98 |
| | Paraburkholderia graminis OAS925 | ABIE53_001362 | | DNA-binding NtrC family response regulator | strong | 45 | 69 |
| | Dechlorosoma suillum PS | Dsui_3467 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 38 | 87 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0700 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 37 | 99 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_00486 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | cofit | 37 | 98 |
| | Pseudomonas sp. DMC3 | GFF4000 | | Regulatory protein AtoC | cofit | 37 | 91 |
| | Paraburkholderia graminis OAS925 | ABIE53_003030 | | two-component system response regulator HydG | strong | 36 | 97 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_10090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 35 | 99 |
| | Pseudomonas segetis P6 | ACVTMO_RS19460 | | sigma-54-dependent transcriptional regulator | cofit | 36 | 99 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_00236 | | sigma54 specific transcriptional regulator, Fis family | strong | 45 | 69 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_0521 | | PEP-CTERM-box response regulator transcription factor | strong | 36 | 88 |
| | Rhizobium sp. OAE497 | ABIE40_RS09090 | | nitrogen regulation protein NR(I) | strong | 34 | 98 |
| | Paraburkholderia graminis OAS925 | ABIE53_001852 | | two-component system C4-dicarboxylate transport response regulator DctD | strong | 37 | 98 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT0015 | | rteB, two-component system response regulator (NCBI ptt file) | insig. | 36 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0823 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 37 | 97 |
| | Pseudomonas sp. SVBP6 | COO64_RS16760 | | sigma-54 dependent transcriptional regulator | insig. | 36 | 98 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS07980 | | nitrogen regulation protein NR(I) | strong | 42 | 82 |
| | Pseudomonas orientalis W4I3 | QF045_RS04425 | | sigma-54 dependent transcriptional regulator | cofit | 36 | 98 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS16305 | | sigma-54 dependent transcriptional regulator | insig. | 37 | 97 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_04368 | | two component, sigma54 specific, transcriptional regulator, NtrC subfamily, Fis family | cofit | 36 | 97 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS07730 | | nitrogen regulation protein NR(I) | cofit | 38 | 97 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS01400 | | sigma-54-dependent Fis family transcriptional regulator | strong | 37 | 98 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS01400 | | sigma-54-dependent Fis family transcriptional regulator | strong | 37 | 98 |
| | Sinorhizobium meliloti 1021 | SMc01043 | | nitrogen assimilation regulatory protein | strong | 34 | 98 |
| | Marinobacter adhaerens HP15 | HP15_523 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 34 | 99 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_09635 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 36 | 97 |
| | Acinetobacter radioresistens SK82 | MPMX26_00162 | | Regulatory protein AtoC | cofit | 33 | 97 |
| | Ralstonia solanacearum GMI1000 | RS_RS17240 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 39 | 88 |
| | Rhodospirillum rubrum S1H | Rru_A1435 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | strong | 38 | 98 |
| | Marinobacter adhaerens HP15 | HP15_1891 | | two component, sigma54 specific, transcriptional regulator, Fis family | insig. | 37 | 89 |
| | Lysobacter sp. OAE881 | ABIE51_RS04850 | | sigma-54 dependent transcriptional regulator | strong | 35 | 98 |
| | Klebsiella michiganensis M5al | BWI76_RS01605 | | transcriptional regulatory protein ZraR | insig. | 35 | 99 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS19085 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 34 | 97 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS23170 | | ATPase AAA | insig. | 36 | 97 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS14340 | | Fis family transcriptional regulator | cofit | 36 | 97 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04045 | | Transcriptional regulatory protein ZraR | insig. | 35 | 99 |
| | Rhizobium sp. OAE497 | ABIE40_RS26335 | | sigma-54 dependent transcriptional regulator | strong | 37 | 97 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS16810 | | Fis family transcriptional regulator | strong | 37 | 95 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_16520 | | DNA-binding response regulator | insig. | 34 | 97 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS20000 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 33 | 97 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS14380 | | sigma-54 dependent transcriptional regulator | insig. | 34 | 97 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS05560 | | Fis family transcriptional regulator | strong | 44 | 69 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_14465 | ntrC | nitrogen regulation protein NR(I) | sig. | 42 | 82 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS37765 | | sigma-54 dependent transcriptional regulator | insig. | 36 | 98 |