| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Pseudomonas syringae pv. syringae B728a | Psyr_2735 | | Helix-turn-helix, Fis-type | insig. | 100 | 100 |
| o | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_2735 | | Helix-turn-helix, Fis-type | insig. | 100 | 100 |
| o | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_1372 | | sigma-54 dependent transcriptional regulator | insig. | 80 | 100 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_27970 | | Fis family transcriptional regulator | insig. | 80 | 100 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02351 | | Phenol regulator MopR | cofit | 79 | 100 |
| o | Pseudomonas fluorescens SBW25 | PFLU_RS16115 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 80 | 100 |
| o | Pseudomonas fluorescens SBW25-INTG | PFLU_RS16115 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 80 | 100 |
| o | Herbaspirillum seropedicae SmR1 | HSERO_RS22915 | | Fis family transcriptional regulator | insig. | 57 | 94 |
| o | Ralstonia solanacearum PSI07 | RPSI07_RS00800 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 56 | 96 |
| o | Ralstonia solanacearum GMI1000 | RS_RS18250 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 55 | 97 |
| o | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS22395 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 55 | 96 |
| o | Ralstonia solanacearum UW163 | UW163_RS22940 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 55 | 96 |
| o | Pseudomonas sp. RS175 | PFR28_01986 | | Phenol regulator MopR | insig. | 54 | 96 |
| o | Cupriavidus basilensis FW507-4G11 | RR42_RS32695 | | Fis family transcriptional regulator | insig. | 47 | 93 |
| o | Marinobacter adhaerens HP15 | HP15_4023 | | helix-turn-helix, Fis-type | insig. | 42 | 94 |
| o | Alteromonas macleodii MIT1002 | MIT1002_02086 | | Nif-specific regulatory protein | insig. | 42 | 94 |
| o | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS10130 | | sigma 54-interacting transcriptional regulator | insig. | 47 | 93 |
| o | Pseudomonas sp. DMC3 | GFF2762 | | Phenol regulator MopR | cofit | 41 | 93 |
| o | Acinetobacter radioresistens SK82 | MPMX26_00910 | | Phenol regulator MopR | insig. | 39 | 94 |
| | Dickeya dianthicola ME23 | DZA65_RS19920 | | nif-specific transcriptional activator NifA | insig. | 46 | 59 |
| | Dickeya dianthicola 67-19 | HGI48_RS18785 | | nif-specific transcriptional activator NifA | insig. | 46 | 59 |
| | Dickeya dadantii 3937 | DDA3937_RS18805 | | nif-specific transcriptional activator NifA | insig. | 46 | 59 |
| | Pseudomonas protegens RBAN4 | FABNJH_24715 | | Sigma-54-dependent Fis family transcriptional regulator | insig. | 46 | 56 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 46 | 53 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 46 | 53 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 46 | 53 |
| | Rhodospirillum rubrum S1H | Rru_A1388 | | Transcriptional Regulator, NifA subfamily, Fis Family (NCBI) | cofit | 45 | 56 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 46 | 53 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 46 | 53 |
| | 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 | 53 |
| | Shewanella loihica PV-4 | Shew_2341 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | insig. | 46 | 57 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3220 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 45 | 57 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0110 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | cofit | 44 | 57 |
| | Rhodopseudomonas palustris CGA009 | TX73_007055 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 43 | 56 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1063 | flrC | transcriptional regulatory protein (TIGR) | strong | 44 | 58 |
| | Shewanella amazonensis SB2B | Sama_1549 | | response regulator receiver protein (RefSeq) | insig. | 45 | 56 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1324 | | sigma54 specific transcriptional regulator, Fis family (RefSeq) | strong | 44 | 57 |
| | Pseudomonas stutzeri RCH2 | Psest_1765 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 45 | 56 |
| | Pseudomonas sp. S08-1 | OH686_02855 | | Flagellar regulatory protein FleQ | cofit | 46 | 56 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01235 | | DNA-binding transcriptional activator HyfR | cofit | 45 | 56 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2894 | flrA | sigma-54 dependent transcriptional regulator (TIGR) | strong | 44 | 57 |
| | Escherichia coli ECRC62 | BNILDI_12310 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 56 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2200 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 44 | 56 |
| | Azospirillum brasilense Sp245 | AZOBR_RS29300 | | Fis family transcriptional regulator | insig. | 44 | 56 |
| | Escherichia coli ECRC100 | OKFHMN_21850 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 56 |
| | Escherichia coli ECRC101 | MCAODC_12380 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 56 |
| | Escherichia coli ECRC102 | NIAGMN_19620 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 56 |
| | Escherichia coli ECRC98 | JDDGAC_25795 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 56 |
| | Escherichia coli ECRC99 | KEDOAH_06370 | hyfR | DNA-binding transcriptional regulator HyfR | no data | 44 | 56 |
| | Shewanella oneidensis MR-1 | SO3232 | flrA | flagellar regulatory protein A (NCBI ptt file) | strong | 42 | 57 |
| | Escherichia coli BL21 | ECD_02383 | | hydrogenase-4 transcriptional activator | cofit | 44 | 56 |
| | Escherichia coli BW25113 | b2491 | hyfR | putative 2-component regulator, interaction with sigma 54 (VIMSS) | sig. | 44 | 56 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_2422 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 43 | 56 |
| | Escherichia coli ECOR38 | HEPCGN_21015 | hyfR | DNA-binding transcriptional activator HyfR | insig. | 44 | 56 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_16225 | | Fis family transcriptional regulator | insig. | 45 | 56 |
| | Escherichia coli ECOR27 | NOLOHH_13500 | | Fis family transcriptional regulator | insig. | 46 | 54 |
| | Shewanella loihica PV-4 | Shew_1362 | | sigma-54 dependent trancsriptional regulator (RefSeq) | strong | 43 | 56 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2934 | ntrX | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 44 | 56 |
| | Rhodopseudomonas palustris CGA009 | TX73_007390 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 43 | 56 |
| | Shewanella sp. ANA-3 | Shewana3_1338 | | sigma-54 dependent trancsriptional regulator (RefSeq) | strong | 42 | 57 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.2800.1 | | Flagellar regulatory protein FleQ | sig. | 44 | 56 |
| | Shewanella amazonensis SB2B | Sama_2301 | | response regulator receiver protein (RefSeq) | strong | 43 | 56 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0823 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 43 | 56 |
| | Rahnella sp. WP5 | EX31_RS15395 | | nif-specific transcriptional activator NifA | insig. | 44 | 59 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1993 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 44 | 57 |
| | Rhodopseudomonas palustris CGA009 | TX73_021705 | | sigma-54 dependent transcriptional regulator | sig. | 43 | 56 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_0196 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 51 | 41 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4357 | | Flagellar regulatory protein FleQ | insig. | 46 | 56 |
| | Caulobacter crescentus NA1000 | CCNA_03424 | | AAA-family response regulator tacA | strong | 44 | 57 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_03424 | | AAA-family response regulator tacA | cofit | 44 | 57 |
| | Pseudomonas orientalis W4I3 | QF045_RS21955 | | sigma-54 dependent transcriptional regulator | cofit | 46 | 56 |
| | Rhodospirillum rubrum S1H | Rru_A0993 | | Transcriptional Regulator, NifA, Fis Family (NCBI) | strong | 42 | 56 |
| | Pseudomonas protegens RBAN4 | FABNJH_08495 | atoC | DNA-binding transcriptional response regulator, NtrC family, contains REC, AAA-type ATPase, and a Fis-type DNA-binding domains | insig. | 46 | 56 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS21795 | | sigma-54-dependent Fis family transcriptional regulator | strong | 46 | 56 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS21795 | | sigma-54-dependent Fis family transcriptional regulator | strong | 46 | 56 |
| | Pseudomonas simiae WCS417 | PS417_19825 | | ATPase AAA | strong | 46 | 56 |
| | Shewanella oneidensis MR-1 | SO3660 | | sigma-54 dependent transcriptional regulator/sensory box protein (NCBI ptt file) | insig. | 51 | 43 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04163 | | Anaerobic nitric oxide reductase transcription regulator NorR | strong | 46 | 56 |
| | Shewanella sp. ANA-3 | Shewana3_3227 | | Fis family transcriptional regulator (RefSeq) | insig. | 51 | 41 |
| | Marinobacter adhaerens HP15 | HP15_523 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 42 | 57 |
| | Shewanella amazonensis SB2B | Sama_2834 | | sigma-54 dependent transcriptional regulator/sensory box protein (RefSeq) | insig. | 47 | 47 |
| | Pseudomonas sp. DMC3 | GFF2445 | | Anaerobic nitric oxide reductase transcription regulator NorR | cofit | 45 | 56 |
| | Pseudomonas simiae WCS417 | PS417_05525 | | Fis family transcriptional regulator | strong | 45 | 56 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF595 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 44 | 56 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2149 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 44 | 57 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_01292 | | Regulatory protein AtoC | cofit | 45 | 56 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_03855 | | AAA family ATPase | strong | 46 | 56 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2597 | | Flagellar regulatory protein FleQ | strong | 46 | 56 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_18660 | | AAA family ATPase | strong | 45 | 56 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_3599 | | Flagellar regulatory protein FleQ | insig. | 45 | 56 |
| | Klebsiella michiganensis M5al | BWI76_RS18890 | | nif-specific transcriptional activator NifA | sig. | 47 | 56 |
| | Pseudomonas sp. RS175 | PFR28_00828 | | Anaerobic nitric oxide reductase transcription regulator NorR | strong | 45 | 56 |
| | Marinobacter adhaerens HP15 | HP15_1011 | | two component, sigma54 specific, transcriptional regulator, Fis family | insig. | 44 | 56 |
| | Dechlorosoma suillum PS | Dsui_1758 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 42 | 58 |
| | Azospirillum brasilense Sp245 | AZOBR_RS14430 | | chemotaxis protein CheY | strong | 42 | 61 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_09635 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 41 | 57 |
| | Pseudomonas aeruginosa MRSN321 | PFGADD_04033 | fleQ | transcriptional regulator FleQ | strong | 47 | 56 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_05045 | | transcriptional regulator FleQ | strong | 47 | 56 |
| | Pseudomonas aeruginosa PUPa3 | NPBIFN_04081 | fleQ | transcriptional regulator FleQ | strong | 47 | 56 |
| | Pseudomonas segetis P6 | ACVTMO_RS15605 | | sigma-54 dependent transcriptional regulator | strong | 46 | 56 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS10015 | | sigma-54 dependent transcriptional regulator | sig. | 43 | 57 |
| | Pseudomonas sp. BP01 | JOY50_RS00705 | fleQ | transcriptional regulator FleQ | sig. | 45 | 56 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 44 | 56 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 44 | 56 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS14390 | | ATPase AAA | strong | 44 | 56 |
| | Pseudomonas orientalis W4I3 | QF045_RS08450 | | sigma-54 dependent transcriptional regulator | insig. | 44 | 56 |
| | Cellulophaga baltica 18 | M666_RS12540 | | sigma 54-interacting response regulator | insig. | 41 | 56 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_3461 | | Helix-turn-helix, Fis-type | strong | 44 | 56 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_3461 | | Helix-turn-helix, Fis-type | cofit | 44 | 56 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1461 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 53 | 41 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_04380 | | response regulator | strong | 52 | 40 |
| | Pseudomonas putida KT2440 | PP_4373 | | Transcriptional regulator FleQ | strong | 45 | 56 |
| | Pseudomonas sp. SVBP6 | COO64_RS21300 | fleQ | transcriptional regulator FleQ | cofit | 45 | 56 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_3020 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 43 | 55 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS16590 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 39 | 56 |
| | Alteromonas macleodii MIT1002 | MIT1002_01081 | | Nitrogen assimilation regulatory protein | cofit | 40 | 60 |
| | Cellulophaga baltica 18 | M666_RS02825 | | sigma-54 dependent transcriptional regulator | strong | 40 | 57 |
| | Rhizobium sp. OAE497 | ABIE40_RS09090 | | nitrogen regulation protein NR(I) | strong | 44 | 56 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS09195 | | Fis family transcriptional regulator | strong | 42 | 57 |
| | Klebsiella michiganensis M5al | BWI76_RS10230 | | AAA family ATPase | no data | 39 | 60 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1419 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 42 | 58 |
| | Pseudomonas sp. SVBP6 | COO64_RS13820 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 47 | 54 |
| | Marinobacter adhaerens HP15 | HP15_2330 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 43 | 56 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1260 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 42 | 57 |
| | Methylophilus sp. DMC18 | GFF2024 | | DNA-binding transcriptional regulator NtrC | strong | 42 | 58 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_10670 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 41 | 56 |
| | Pseudomonas sp. RS175 | PFR28_01679 | | Regulatory protein AtoC | sig. | 42 | 57 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0608 | | transcriptional regulator, NifA subfamily, Fis Family (RefSeq) | strong | 41 | 57 |
| | Azospirillum sp. SherDot2 | MPMX19_06071 | | Nitric oxide reductase transcription regulator NorR2 | insig. | 43 | 58 |
| | Xanthobacter sp. DMC5 | GFF4584 | | Nif-specific regulatory protein | insig. | 40 | 56 |
| | Dickeya dadantii 3937 | DDA3937_RS07400 | | formate hydrogenlyase transcriptional activator FlhA | insig. | 50 | 40 |
| | Pseudomonas sp. S08-1 | OH686_06630 | | T6SS sigma-54-dependent regulator VasH | insig. | 46 | 54 |
| | Pseudomonas protegens RBAN4 | FABNJH_16045 | | Fis family transcriptional regulator | insig. | 44 | 57 |
| | Dickeya dianthicola 67-19 | HGI48_RS07265 | | formate hydrogenlyase transcriptional activator FlhA | insig. | 41 | 56 |
| | Dickeya dianthicola ME23 | DZA65_RS07775 | | formate hydrogenlyase transcriptional activator FlhA | insig. | 41 | 56 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS01145 | | sigma-54-dependent Fis family transcriptional regulator | strong | 39 | 56 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_10660 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 52 | 37 |
| | Paraburkholderia graminis OAS925 | ABIE53_004468 | | transcriptional regulator with GAF, ATPase, and Fis domain | insig. | 43 | 56 |
| | Pseudomonas sp. S08-1 | OH686_16390 | | Type IV fimbriae expression regulatory protein PilR | cofit | 42 | 57 |
| | Rhodospirillum rubrum S1H | Rru_A1678 | | Nitrogen Metabolism Transcriptional Regulator, NtrC, Fis Family (NCBI) | strong | 42 | 56 |
| | Escherichia coli ECRC62 | BNILDI_06055 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 41 | 62 |
| | Pseudomonas sp. DMC3 | GFF3445 | | Transcriptional regulatory protein ZraR | cofit | 43 | 57 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_11555 | | transcriptional regulator | no data | 46 | 54 |
| | Xanthobacter sp. DMC5 | GFF4834 | | Regulatory protein AtoC | insig. | 44 | 56 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_03783 | | Transcriptional regulator containing GAF, AAA-type ATPase, and DNA binding domains | insig. | 44 | 54 |
| | Escherichia coli ECOR38 | HEPCGN_11960 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 43 | 56 |
| | Pseudomonas putida KT2440 | PP_3503 | | Sigma-54 dependent transcriptional regulator | sig. | 43 | 57 |
| | Azospirillum sp. SherDot2 | MPMX19_05978 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 43 | 57 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVUA0143 | nifA-2 | nif-specific regulatory protein (TIGR) | strong | 46 | 56 |
| | Sphingobium sp. HT1-2 | GFF1148 | | Nitrogen regulation protein NR(I), GlnG (=NtrC) | strong | 43 | 56 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS17530 | | nif-specific transcriptional activator NifA | insig. | 43 | 56 |
| | Escherichia coli ECOR27 | NOLOHH_05465 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 41 | 62 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 41 | 62 |
| | Pseudomonas aeruginosa MRSN321 | PFGADD_02740 | | transcriptional regulator | insig. | 46 | 54 |
| | Pseudomonas aeruginosa PUPa3 | NPBIFN_02771 | | transcriptional regulator | insig. | 46 | 54 |
| | Caulobacter crescentus NA1000 | CCNA_00954 | | AAA-family response regulator flbD | strong | 41 | 57 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_00954 | | AAA-family response regulator flbD | cofit | 41 | 57 |
| | Azospirillum sp. SherDot2 | MPMX19_01112 | | DNA-binding transcriptional regulator NtrC | no data | 41 | 61 |
| | Shewanella loihica PV-4 | Shew_3082 | | sigma-54 dependent trancsriptional regulator (RefSeq) | insig. | 52 | 39 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF1930 | | Transcriptional regulatory protein zraR | insig. | 46 | 56 |
| | Lysobacter sp. OAE881 | ABIE51_RS16770 | | sigma-54 dependent transcriptional regulator | cofit | 46 | 56 |
| | Azospirillum brasilense Sp245 | AZOBR_RS21130 | | Fis family transcriptional regulator | insig. | 42 | 58 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04045 | | Transcriptional regulatory protein ZraR | insig. | 40 | 62 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS20155 | | sigma-54 dependent transcriptional regulator | insig. | 44 | 56 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS15090 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 43 | 56 |
| | Escherichia coli BL21 | ECD_03881 | | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein | insig. | 41 | 62 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_27825 | | Fis family transcriptional regulator | insig. | 42 | 57 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0670 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 42 | 58 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2411 | | sigma54 specific transcriptional regulator, Fis family (RefSeq) | insig. | 37 | 74 |
| | Rhodospirillum rubrum S1H | Rru_A3104 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | insig. | 52 | 40 |
| | Erwinia amylovora T8 | OLJFJH_13990 | | AAA family ATPase | insig. | 46 | 54 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02740 | | Regulatory protein AtoC | cofit | 42 | 58 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3305 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | strong | 42 | 56 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS11950 | | nitrogen regulation protein NR(I) | no data | 41 | 61 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4019 | | Sigma-54 dependent transcriptional regulator | cofit | 41 | 61 |
| | Escherichia coli BW25113 | b4004 | zraR | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein (NCBI) | insig. | 41 | 62 |
| | Cellulophaga baltica 18 | M666_RS19210 | | sigma-54 dependent transcriptional regulator | insig. | 50 | 39 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_25810 | | Fis family transcriptional regulator | insig. | 44 | 57 |
| | Pseudomonas putida KT2440 | PP_0807 | | DNA-binding transcriptional dual regulator (NO) | insig. | 42 | 57 |
| | Pseudomonas sp. DMC3 | GFF451 | | Anaerobic nitric oxide reductase transcription regulator NorR | cofit | 40 | 59 |
| | Pseudomonas sp. SVBP6 | COO64_RS21290 | | sigma-54 dependent transcriptional regulator | insig. | 56 | 37 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS14515 | | sigma-54 dependent transcriptional regulator | insig. | 43 | 55 |
| | Pseudomonas simiae WCS417 | PS417_12465 | | Fis family transcriptional regulator | insig. | 43 | 58 |
| | Agrobacterium fabrum C58 | Atu1446 | | two component response regulator | strong | 43 | 56 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_763 | | Sigma-54 dependent transcriptional regulator | insig. | 43 | 57 |
| | Sinorhizobium meliloti 1021 | SMc01043 | | nitrogen assimilation regulatory protein | strong | 42 | 56 |
| | Pseudomonas aeruginosa MRSN321 | PFGADD_04755 | pilR | two-component response regulator PilR | strong | 42 | 57 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_00790 | | two-component response regulator PilR | strong | 42 | 57 |
| | Pseudomonas aeruginosa PUPa3 | NPBIFN_04816 | pilR | two-component response regulator PilR | strong | 42 | 57 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4188 | | Response regulator of zinc sigma-54-dependent two-component system | insig. | 42 | 56 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2601 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 40 | 57 |
| | Acinetobacter radioresistens SK82 | MPMX26_00162 | | Regulatory protein AtoC | cofit | 39 | 59 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_04200 | | Sigma-54 interaction domain protein | insig. | 38 | 61 |
| | Serratia liquefaciens MT49 | IAI46_12570 | | formate hydrogenlyase transcriptional activator FlhA | insig. | 36 | 76 |
| | Bosea sp. OAE506 | ABIE41_RS16785 | | nitrogen regulation protein NR(I) | insig. | 43 | 57 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_3006 | | Sigma-54 dependent transcriptional regulator | insig. | 43 | 57 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS09765 | | sigma-54 dependent transcriptional regulator | insig. | 49 | 41 |
| | Pseudomonas putida KT2440 | PP_2771 | | Sigma-54 dependent transcriptional regulator | insig. | 43 | 56 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS13155 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 42 | 58 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS13155 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 42 | 58 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS11070 | | sigma-54 dependent transcriptional regulator | cofit | 41 | 58 |
| | Pectobacterium carotovorum WPP14 | HER17_RS17125 | | nitric oxide reductase transcriptional regulator NorR | insig. | 41 | 59 |
| | Escherichia fergusonii Becca | EFB2_04606 | | Transcriptional regulatory protein ZraR | insig. | 40 | 62 |
| | Rahnella sp. WP5 | EX31_RS19870 | | formate hydrogenlyase transcriptional activator FlhA | insig. | 37 | 67 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0744 | | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | strong | 46 | 50 |
| | Methylophilus sp. DMC18 | GFF2815 | | Regulatory protein AtoC | insig. | 43 | 58 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS13485 | | sigma-54-dependent Fis family transcriptional regulator | strong | 43 | 56 |
| | Pseudomonas sp. SVBP6 | COO64_RS14675 | | sigma-54 dependent transcriptional regulator | insig. | 43 | 57 |
| | Rhodopseudomonas palustris CGA009 | TX73_024055 | | nif-specific transcriptional activator NifA | strong | 41 | 56 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS42175 | | nif-specific transcriptional activator NifA | insig. | 41 | 56 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_4731 | | Sigma-54 dependent transcriptional regulator | sig. | 43 | 57 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0118 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | insig. | 42 | 56 |
| | Pseudomonas stutzeri RCH2 | Psest_0705 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 40 | 62 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS13225 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 42 | 56 |
| | Pseudomonas stutzeri RCH2 | Psest_1071 | | Transcriptional regulator containing PAS, AAA-type ATPase, and DNA-binding domains | strong | 42 | 56 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_10090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 41 | 58 |
| | Azospirillum sp. SherDot2 | MPMX19_06333 | | Regulatory protein AtoC | insig. | 41 | 56 |
| | Klebsiella michiganensis M5al | BWI76_RS17490 | | Fis family transcriptional regulator | insig. | 40 | 57 |
| | Pseudomonas aeruginosa MRSN321 | PFGADD_04951 | cbrB | two-component system response regulator CbrB | strong | 47 | 46 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_29980 | | two-component system response regulator CbrB | strong | 47 | 46 |
| | Pseudomonas aeruginosa PUPa3 | NPBIFN_05028 | cbrB | two-component system response regulator CbrB | strong | 47 | 46 |
| | Pseudomonas simiae WCS417 | PS417_19815 | | Fis family transcriptional regulator | no data | 44 | 58 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_09495 | | Fis family transcriptional regulator | insig. | 43 | 56 |
| | Klebsiella pneumoniae MRSN742743 | GJGHJB_04748 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 41 | 58 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS23225 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 51 | 41 |
| | Ralstonia solanacearum UW163 | UW163_RS16475 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 51 | 41 |
| | Pseudomonas protegens RBAN4 | FABNJH_15135 | zraR | Transcriptional regulatory protein ZraR | insig. | 46 | 54 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_03460 | | AAA family ATPase | insig. | 53 | 39 |
| | Klebsiella pneumoniae MRSN742743 | GJGHJB_00950 | atoC | Aliphatic sulfonate ABC transporter substrate-binding protein | insig. | 53 | 39 |
| | Pseudomonas aeruginosa MRSN321 | PFGADD_03178 | | Sigma-54-dependent Fis family transcriptional regulator | insig. | 44 | 56 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVUA0057 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | insig. | 43 | 57 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS16305 | | sigma-54 dependent transcriptional regulator | insig. | 43 | 56 |
| | Pseudomonas protegens RBAN4 | FABNJH_26825 | pilR | Putative sigma-54 dependent DNA-binding response regulator PilR | insig. | 42 | 59 |
| | Pseudomonas sp. BP01 | JOY50_RS23015 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 42 | 57 |
| | Xanthobacter sp. DMC5 | GFF848 | | DNA-binding transcriptional regulator NtrC | no data | 42 | 59 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_1941 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 41 | 58 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS11790 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 56 |
| | Klebsiella michiganensis M5al | BWI76_RS22905 | | ATPase AAA | insig. | 52 | 41 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS01750 | | sigma-54 dependent transcriptional regulator | strong | 42 | 57 |
| | Pseudomonas orientalis W4I3 | QF045_RS17445 | | sigma-54 dependent transcriptional regulator | insig. | 42 | 58 |
| | Escherichia coli ECRC101 | MCAODC_03820 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 41 | 62 |
| | Escherichia coli ECRC102 | NIAGMN_11070 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 41 | 62 |
| | Escherichia coli ECRC99 | KEDOAH_14840 | zraR | sigma-54-dependent response regulator transcription factor ZraR | no data | 41 | 62 |
| | Rhodospirillum rubrum S1H | Rru_A0326 | | Transcriptional Regulator, NifA subfamily, Fis Family (NCBI) | insig. | 40 | 56 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS15800 | | sigma-54-dependent Fis family transcriptional regulator | strong | 40 | 56 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1949 | nifA-1 | nif-specific regulatory protein (TIGR) | strong | 39 | 57 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS15305 | | PEP-CTERM-box response regulator transcription factor | insig. | 43 | 57 |
| | Pseudomonas segetis P6 | ACVTMO_RS19460 | | sigma-54-dependent transcriptional regulator | cofit | 42 | 57 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4355 | | Flagellar regulatory protein FleQ | sig. | 54 | 37 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS04800 | | sigma-54 dependent transcriptional regulator | strong | 41 | 56 |