| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_07640 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 100 | 100 |
| o | Shewanella sp. ANA-3 | Shewana3_4076 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | cofit | 62 | 97 |
| o | Shewanella oneidensis MR-1 | SO4718 | | sigma-54 dependent response regulator (NCBI ptt file) | sig. | 61 | 97 |
| o | Shewanella loihica PV-4 | Shew_3682 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | strong | 61 | 96 |
| o | Shewanella amazonensis SB2B | Sama_0125 | | response regulator receiver protein (RefSeq) | strong | 60 | 98 |
| o | Azospirillum sp. SherDot2 | MPMX19_03494 | | Regulatory protein AtoC | insig. | 47 | 95 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF1195 | | Sigma-54 dependent response regulator | insig. | 46 | 95 |
| o | Azospirillum brasilense Sp245 | AZOBR_RS18445 | | chemotaxis protein CheY | insig. | 45 | 95 |
| o | Xanthobacter sp. DMC5 | GFF4458 | | Transcriptional regulatory protein ZraR | insig. | 46 | 96 |
| o | Dechlorosoma suillum PS | Dsui_3286 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 46 | 95 |
| o | Phaeobacter inhibens DSM 17395 | PGA1_c27610 | | transcriptional regulatory protein, containing sigma-54 interaction domain | insig. | 39 | 95 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0823 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 39 | 95 |
| | Methylophilus sp. DMC18 | GFF2815 | | Regulatory protein AtoC | insig. | 39 | 95 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS05020 | | sigma-54 dependent transcriptional regulator | strong | 39 | 95 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3220 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 40 | 95 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 39 | 95 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 39 | 95 |
| | Escherichia coli BW25113 | b2220 | atoC | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein (NCBI) | insig. | 39 | 95 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_01730 | atoC | sigma-54-dependent Fis family transcriptional regulator | cofit | 39 | 95 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 39 | 95 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 39 | 95 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 39 | 95 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS04990 | | sigma-54 dependent transcriptional regulator | cofit | 38 | 95 |
| o | Lysobacter sp. OAE881 | ABIE51_RS04850 | | sigma-54 dependent transcriptional regulator | strong | 38 | 95 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2200 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 45 | 78 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2149 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 39 | 95 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS04800 | | sigma-54 dependent transcriptional regulator | cofit | 38 | 95 |
| o | Acinetobacter baumannii LAC-4 | RR41_RS17800 | | sigma-54 dependent transcriptional regulator | insig. | 36 | 95 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2394 | ntrC1 | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 39 | 95 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0332 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 38 | 95 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2095 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 39 | 94 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4188 | | Response regulator of zinc sigma-54-dependent two-component system | insig. | 40 | 94 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_16520 | | DNA-binding response regulator | insig. | 39 | 95 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_09510 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 38 | 95 |
| | Pseudomonas sp. DMC3 | GFF4000 | | Regulatory protein AtoC | cofit | 38 | 95 |
| | Escherichia coli ECRC62 | BNILDI_06055 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 40 | 94 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4019 | | Sigma-54 dependent transcriptional regulator | sig. | 41 | 76 |
| o | Acinetobacter radioresistens SK82 | MPMX26_00162 | | Regulatory protein AtoC | cofit | 36 | 95 |
| | Escherichia coli ECOR27 | NOLOHH_05465 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 40 | 94 |
| | Pseudomonas sp. SVBP6 | COO64_RS16760 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 95 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS11070 | | sigma-54 dependent transcriptional regulator | cofit | 38 | 95 |
| | Escherichia coli BL21 | ECD_03881 | | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein | insig. | 40 | 94 |
| | Escherichia fergusonii Becca | EFB2_04606 | | Transcriptional regulatory protein ZraR | insig. | 39 | 94 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 39 | 94 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS16305 | | sigma-54 dependent transcriptional regulator | insig. | 37 | 94 |
| | Escherichia coli BW25113 | b4004 | zraR | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein (NCBI) | insig. | 40 | 94 |
| | Escherichia coli ECOR38 | HEPCGN_11960 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 39 | 94 |
| o | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_4656 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 37 | 95 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS23710 | pilR;inference=COORDINATES | two-component system response regulator PilR | strong | 37 | 95 |
| o | Pseudomonas fluorescens FW300-N2E3 | AO353_14200 | | transcriptional regulator | insig. | 37 | 95 |
| | Methylophilus sp. DMC18 | GFF1277 | | Regulatory protein AtoC | insig. | 38 | 93 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04045 | | Transcriptional regulatory protein ZraR | insig. | 40 | 94 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_00790 | | two-component response regulator PilR | strong | 37 | 95 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS56175 | pilR;inference=COORDINATES | two-component system response regulator PilR | strong | 37 | 95 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS23225 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 85 |
| | Ralstonia solanacearum UW163 | UW163_RS16475 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 85 |
| | Cellulophaga baltica 18 | M666_RS19210 | | sigma-54 dependent transcriptional regulator | insig. | 41 | 76 |
| | Pseudomonas sp. S08-1 | OH686_17260 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 38 | 94 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1419 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 37 | 95 |
| | Klebsiella michiganensis M5al | BWI76_RS01605 | | transcriptional regulatory protein ZraR | insig. | 39 | 93 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1993 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 37 | 95 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1260 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 40 | 95 |
| | Escherichia coli ECRC100 | OKFHMN_13320 | zraR | sigma-54-dependent response regulator transcription factor ZraR | cofit | 40 | 94 |
| | Escherichia coli ECRC101 | MCAODC_03820 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 40 | 94 |
| | Escherichia coli ECRC102 | NIAGMN_11070 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 40 | 94 |
| | Escherichia coli ECRC99 | KEDOAH_14840 | zraR | sigma-54-dependent response regulator transcription factor ZraR | no data | 40 | 94 |
| o | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.1353.1 | | Type IV fimbriae expression regulatory protein PilR | sig. | 38 | 92 |
| | Pseudomonas putida KT2440 | PP_4696 | | Nitrogen regulation protein NR(I) | strong | 38 | 94 |
| | Shewanella oneidensis MR-1 | SO3138 | dctD | C4-dicarboxylate transport transcriptional regulatory protein (NCBI ptt file) | insig. | 42 | 78 |
| | Pseudomonas stutzeri RCH2 | Psest_0705 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 37 | 95 |
| | Pseudomonas segetis P6 | ACVTMO_RS06070 | | sigma-54-dependent transcriptional regulator | no data | 38 | 94 |
| | Pseudomonas sp. BP01 | JOY50_RS14825 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 95 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS09115 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 95 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS09370 | cbrB;inference=COORDINATES | two-component system response regulator CbrB | strong | 41 | 76 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_29980 | | two-component system response regulator CbrB | strong | 41 | 76 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS52660 | cbrB;inference=COORDINATES | two-component system response regulator CbrB | strong | 41 | 76 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3305 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | strong | 38 | 95 |
| | Azospirillum sp. SherDot2 | MPMX19_03597 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 38 | 95 |
| | Pseudomonas sp. BP01 | JOY50_RS27675 | | sigma-54 dependent transcriptional regulator | cofit | 37 | 94 |
| | Pseudomonas orientalis W4I3 | QF045_RS08450 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 95 |
| | Xanthobacter sp. DMC5 | GFF4834 | | Regulatory protein AtoC | insig. | 37 | 95 |
| | Pseudomonas sp. DMC3 | GFF4030 | | Transcriptional regulatory protein ZraR | strong | 37 | 94 |
| | Ralstonia solanacearum GMI1000 | RS_RS25105 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 36 | 96 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_04380 | | response regulator | strong | 41 | 76 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS00045 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 39 | 85 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04930 | | Transcriptional regulatory protein ZraR | cofit | 38 | 94 |
| | Ralstonia solanacearum GMI1000 | RS_RS17240 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 39 | 85 |
| | Escherichia coli ECRC98 | JDDGAC_16945 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 39 | 94 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_14400 | | Fis family transcriptional regulator | strong | 38 | 94 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_09635 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 42 | 76 |
| | Pseudomonas simiae WCS417 | PS417_23895 | | Fis family transcriptional regulator | no data | 38 | 94 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2858 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 38 | 94 |
| | Marinobacter adhaerens HP15 | HP15_523 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 36 | 96 |
| | Shewanella sp. ANA-3 | Shewana3_1412 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | cofit | 43 | 78 |
| | Pseudomonas sp. S08-1 | OH686_16390 | | Type IV fimbriae expression regulatory protein PilR | cofit | 37 | 94 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS07835 | | sigma-54-dependent Fis family transcriptional regulator | strong | 36 | 95 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS25735 | | sigma-54-dependent Fis family transcriptional regulator | strong | 41 | 77 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS25735 | | sigma-54-dependent Fis family transcriptional regulator | strong | 41 | 77 |
| | Azospirillum sp. SherDot2 | MPMX19_06089 | | Regulatory protein LuxO | insig. | 39 | 86 |
| | Shewanella amazonensis SB2B | Sama_2213 | | response regulator receiver protein (RefSeq) | strong | 39 | 95 |