| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Rhodospirillum rubrum S1H | Rru_A0540 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | insig. | 100 | 100 |
| o | Magnetospirillum magneticum AMB-1 | AMB_RS02570 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 66 | 99 |
| o | Caulobacter crescentus NA1000 | CCNA_00954 | | AAA-family response regulator flbD | strong | 61 | 99 |
| o | Caulobacter crescentus NA1000 Δfur | CCNA_00954 | | AAA-family response regulator flbD | cofit | 61 | 99 |
| o | Bosea sp. OAE506 | ABIE41_RS10895 | | sigma-54 dependent transcriptional regulator | insig. | 62 | 100 |
| o | Rhodopseudomonas palustris CGA009 | TX73_006510 | | sigma-54 dependent transcriptional regulator | strong | 63 | 99 |
| o | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS09765 | | sigma-54 dependent transcriptional regulator | insig. | 58 | 99 |
| | Azospirillum brasilense Sp245 | AZOBR_RS20165 | | ATPase AAA | strong | 68 | 82 |
| | Azospirillum sp. SherDot2 | MPMX19_04090 | | Anaerobic nitric oxide reductase transcription regulator NorR | cofit | 66 | 82 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 46 | 86 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 46 | 86 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 46 | 86 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 46 | 86 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 46 | 86 |
| | Escherichia coli BW25113 | b2220 | atoC | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein (NCBI) | insig. | 46 | 86 |
| o | Pseudomonas sp. BP01 | JOY50_RS00695 | | sigma-54 dependent transcriptional regulator | insig. | 46 | 93 |
| o | Desulfovibrio vulgaris Hildenborough JW710 | DVU1063 | flrC | transcriptional regulatory protein (TIGR) | strong | 45 | 93 |
| o | Shewanella loihica PV-4 | Shew_1364 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | strong | 45 | 89 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0823 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 43 | 96 |
| o | Pseudomonas putida KT2440 | PP_4371 | | two component system AtoC DNA-binding transcriptional activator | strong | 46 | 93 |
| o | Pseudomonas sp. SVBP6 | COO64_RS21290 | | sigma-54 dependent transcriptional regulator | insig. | 46 | 91 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_3020 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 42 | 93 |
| o | Pseudomonas sp. DMC3 | GFF2447 | | Regulatory protein AtoC | cofit | 44 | 92 |
| o | Pseudomonas segetis P6 | ACVTMO_RS15595 | | sigma-54-dependent transcriptional regulator | strong | 45 | 87 |
| o | Pseudomonas fluorescens SBW25 | PFLU_RS21785 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 45 | 91 |
| o | Pseudomonas fluorescens SBW25-INTG | PFLU_RS21785 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 45 | 91 |
| o | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2595 | | Flagellar regulatory protein FleQ | sig. | 45 | 93 |
| o | Shewanella sp. ANA-3 | Shewana3_1340 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | strong | 46 | 87 |
| o | Pseudomonas orientalis W4I3 | QF045_RS21945 | | sigma-54 dependent transcriptional regulator | insig. | 44 | 91 |
| o | Pseudomonas simiae WCS417 | PS417_19815 | | Fis family transcriptional regulator | no data | 45 | 87 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_03845 | | Fis family transcriptional regulator | cofit | 44 | 93 |
| o | Alteromonas macleodii MIT1002 | MIT1002_01083 | | Transcriptional regulatory protein ZraR | cofit | 42 | 91 |
| o | Vibrio cholerae E7946 ATCC 55056 | CSW01_10660 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 43 | 82 |
| o | Pseudomonas stutzeri RCH2 | Psest_1767 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 45 | 87 |
| o | Shewanella oneidensis MR-1 | SO3230 | flrC | flagellar regulatory protein C (NCBI ptt file) | cofit | 47 | 82 |
| o | Pseudomonas fluorescens FW300-N2E3 | AO353_18670 | | Fis family transcriptional regulator | strong | 44 | 92 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04161 | | Regulatory protein AtoC | cofit | 45 | 87 |
| | Pseudomonas sp. RS175 | PFR28_00830 | | Regulatory protein AtoC | cofit | 46 | 88 |
| o | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4355 | | Flagellar regulatory protein FleQ | sig. | 44 | 93 |
| o | Pseudomonas sp. S08-1 | OH686_02845 | | Flagellar two-component response regulator FleR | strong | 46 | 82 |
| o | Shewanella amazonensis SB2B | Sama_2299 | | response regulator receiver protein (RefSeq) | sig. | 44 | 88 |
| o | Pseudomonas syringae pv. syringae B728a | Psyr_3459 | | Helix-turn-helix, Fis-type | insig. | 44 | 87 |
| o | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_3459 | | Helix-turn-helix, Fis-type | insig. | 44 | 87 |
| o | Dechlorosoma suillum PS | Dsui_1758 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 45 | 80 |
| | Marinobacter adhaerens HP15 | HP15_2328 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 42 | 88 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS06955 | fleR;inference=COORDINATES | sigma-54-dependent response regulator transcription factor FleR | strong | 47 | 82 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_05055 | | sigma-54-dependent response regulator transcription factor FleR | strong | 47 | 82 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS45880 | fleR;inference=COORDINATES | sigma-54-dependent response regulator transcription factor FleR | strong | 47 | 82 |
| | Escherichia coli BL21 | ECD_03881 | | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein | insig. | 43 | 91 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04045 | | Transcriptional regulatory protein ZraR | insig. | 44 | 88 |
| | Escherichia coli BW25113 | b4004 | zraR | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein (NCBI) | insig. | 43 | 91 |
| | Escherichia coli ECRC62 | BNILDI_06055 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 43 | 91 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 42 | 91 |
| | Escherichia coli ECOR27 | NOLOHH_05465 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 43 | 91 |
| | Escherichia coli ECRC101 | MCAODC_03820 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 42 | 91 |
| | Escherichia coli ECRC102 | NIAGMN_11070 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 42 | 91 |
| | Escherichia coli ECRC99 | KEDOAH_14840 | zraR | sigma-54-dependent response regulator transcription factor ZraR | no data | 42 | 91 |
| | Escherichia fergusonii Becca | EFB2_04606 | | Transcriptional regulatory protein ZraR | insig. | 42 | 91 |
| | Escherichia coli ECOR38 | HEPCGN_11960 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 42 | 91 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4188 | | Response regulator of zinc sigma-54-dependent two-component system | insig. | 43 | 88 |
| | Escherichia coli ECRC98 | JDDGAC_16945 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 42 | 91 |
| | Azospirillum sp. SherDot2 | MPMX19_03461 | | Regulatory protein AtoC | insig. | 41 | 85 |
| | Escherichia coli ECRC100 | OKFHMN_13320 | zraR | sigma-54-dependent response regulator transcription factor ZraR | cofit | 42 | 91 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS12345 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 50 | 68 |
| | Pantoea sp. MT58 | IAI47_21575 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 49 | 68 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2149 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 40 | 87 |
| | Klebsiella michiganensis M5al | BWI76_RS01605 | | transcriptional regulatory protein ZraR | insig. | 43 | 88 |
| | Rhodospirillum rubrum S1H | Rru_A1385 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | cofit | 44 | 86 |
| | Serratia liquefaciens MT49 | IAI46_07205 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 50 | 68 |
| | Pseudomonas sp. BP01 | JOY50_RS05065 | sfnR | sigma54-dependent transcriptional activator SfnR | insig. | 45 | 74 |
| | Methylophilus sp. DMC18 | GFF2815 | | Regulatory protein AtoC | insig. | 43 | 80 |
| | Erwinia amylovora T8 | OLJFJH_13990 | | AAA family ATPase | insig. | 49 | 68 |
| | Klebsiella michiganensis M5al | BWI76_RS22905 | | ATPase AAA | insig. | 50 | 68 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1993 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 41 | 86 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_10090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 42 | 85 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0110 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | cofit | 42 | 89 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_03460 | | AAA family ATPase | insig. | 50 | 68 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS18165 | | sigma-54 dependent transcriptional regulator | sig. | 44 | 74 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS59400 | | sigma-54 dependent transcriptional regulator | insig. | 44 | 74 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_11530 | | Fis family transcriptional regulator | sig. | 44 | 74 |
| | Methylophilus sp. DMC18 | GFF1988 | | Sigma54-dependent transcriptional activator SfnR | insig. | 47 | 69 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_28365 | | Fis family transcriptional regulator | sig. | 43 | 74 |
| | Rhodospirillum rubrum S1H | Rru_A1678 | | Nitrogen Metabolism Transcriptional Regulator, NtrC, Fis Family (NCBI) | strong | 40 | 96 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2894 | flrA | sigma-54 dependent transcriptional regulator (TIGR) | strong | 46 | 70 |
| | Pseudomonas orientalis W4I3 | QF045_RS12080 | | sigma-54 dependent transcriptional regulator | cofit | 42 | 78 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02112 | | Sigma54-dependent transcriptional activator SfnR | cofit | 42 | 78 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3381 | ntrC | transcriptional regulatory protein zraR (TIGR) | strong | 44 | 87 |
| | Klebsiella michiganensis M5al | BWI76_RS00385 | | nitrogen assimilation regulatory protein | strong | 41 | 86 |
| | Pseudomonas sp. S08-1 | OH686_06630 | | T6SS sigma-54-dependent regulator VasH | insig. | 44 | 70 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS10100 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 41 | 78 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS10100 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 41 | 78 |
| | Methylophilus sp. DMC18 | GFF1426 | | Transcriptional regulatory protein ZraR | insig. | 41 | 92 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_3248 | | Helix-turn-helix, Fis-type | insig. | 42 | 78 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_3248 | | Helix-turn-helix, Fis-type | insig. | 42 | 78 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3220 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 40 | 91 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2200 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 39 | 92 |
| | Xanthobacter sp. DMC5 | GFF848 | | DNA-binding transcriptional regulator NtrC | no data | 39 | 95 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_09000 | | nitrogen regulation protein NR(I) | insig. | 40 | 86 |
| | Pseudomonas simiae WCS417 | PS417_09450 | | Fis family transcriptional regulator | insig. | 41 | 78 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1324 | | sigma54 specific transcriptional regulator, Fis family (RefSeq) | strong | 46 | 70 |