| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_10660 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 100 | 100 |
| o | Alteromonas macleodii MIT1002 | MIT1002_01083 | | Transcriptional regulatory protein ZraR | cofit | 62 | 100 |
| o | Shewanella sp. ANA-3 | Shewana3_1340 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | strong | 62 | 99 |
| o | Shewanella oneidensis MR-1 | SO3230 | flrC | flagellar regulatory protein C (NCBI ptt file) | cofit | 62 | 99 |
| o | Shewanella amazonensis SB2B | Sama_2299 | | response regulator receiver protein (RefSeq) | sig. | 61 | 100 |
| o | Shewanella loihica PV-4 | Shew_1364 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | strong | 62 | 100 |
| o | Marinobacter adhaerens HP15 | HP15_2328 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 55 | 99 |
| o | Pseudomonas segetis P6 | ACVTMO_RS15595 | | sigma-54-dependent transcriptional regulator | strong | 55 | 99 |
| o | Pseudomonas sp. S08-1 | OH686_02845 | | Flagellar two-component response regulator FleR | strong | 55 | 99 |
| o | Pseudomonas sp. RS175 | PFR28_00830 | | Regulatory protein AtoC | cofit | 56 | 98 |
| o | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2595 | | Flagellar regulatory protein FleQ | sig. | 56 | 98 |
| o | Pseudomonas sp. DMC3 | GFF2447 | | Regulatory protein AtoC | cofit | 55 | 99 |
| o | Pseudomonas stutzeri RCH2 | Psest_1767 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 55 | 99 |
| o | Pseudomonas fluorescens FW300-N2E3 | AO353_18670 | | Fis family transcriptional regulator | strong | 55 | 99 |
| o | Pseudomonas fluorescens SBW25 | PFLU_RS21785 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 54 | 98 |
| o | Pseudomonas fluorescens SBW25-INTG | PFLU_RS21785 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 54 | 98 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04161 | | Regulatory protein AtoC | cofit | 54 | 98 |
| o | Pseudomonas protegens RBAN4 | FABNJH_08505 | fleR | Sigma-54 dependent DNA-binding response regulator FleR | insig. | 55 | 98 |
| o | Pseudomonas orientalis W4I3 | QF045_RS21945 | | sigma-54 dependent transcriptional regulator | insig. | 55 | 98 |
| o | Pseudomonas aeruginosa PUPa3 | DQ20_RS45880 | fleR;inference=COORDINATES | sigma-54-dependent response regulator transcription factor FleR | strong | 54 | 99 |
| o | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4355 | | Flagellar regulatory protein FleQ | sig. | 54 | 98 |
| o | Pseudomonas aeruginosa MRSN321 | DY961_RS06955 | fleR;inference=COORDINATES | sigma-54-dependent response regulator transcription factor FleR | strong | 54 | 99 |
| o | Pseudomonas aeruginosa PA14 | IKLFDK_05055 | | sigma-54-dependent response regulator transcription factor FleR | strong | 54 | 99 |
| o | Pseudomonas sp. BP01 | JOY50_RS00695 | | sigma-54 dependent transcriptional regulator | insig. | 54 | 98 |
| o | Pseudomonas simiae WCS417 | PS417_19815 | | Fis family transcriptional regulator | no data | 54 | 98 |
| o | Pseudomonas putida KT2440 | PP_4371 | | two component system AtoC DNA-binding transcriptional activator | strong | 53 | 98 |
| o | Pseudomonas sp. SVBP6 | COO64_RS21290 | | sigma-54 dependent transcriptional regulator | insig. | 53 | 99 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_03845 | | Fis family transcriptional regulator | cofit | 54 | 98 |
| o | Pseudomonas syringae pv. syringae B728a | Psyr_3459 | | Helix-turn-helix, Fis-type | insig. | 55 | 98 |
| o | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_3459 | | Helix-turn-helix, Fis-type | insig. | 55 | 98 |
| o | Dechlorosoma suillum PS | Dsui_1758 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 51 | 97 |
| | Dechlorosoma suillum PS | Dsui_2360 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 46 | 75 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0110 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | cofit | 39 | 99 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 38 | 99 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 38 | 99 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 38 | 99 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 38 | 99 |
| | Escherichia coli BW25113 | b2220 | atoC | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein (NCBI) | insig. | 38 | 99 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0823 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 37 | 98 |
| | Shewanella amazonensis SB2B | Sama_1549 | | response regulator receiver protein (RefSeq) | insig. | 42 | 80 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 38 | 99 |
| o | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_09510 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 40 | 87 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1993 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 44 | 75 |
| o | Magnetospirillum magneticum AMB-1 | AMB_RS02570 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 94 |
| | Xanthobacter sp. DMC5 | GFF4834 | | Regulatory protein AtoC | insig. | 37 | 98 |
| | Pseudomonas protegens RBAN4 | FABNJH_24715 | | Sigma-54-dependent Fis family transcriptional regulator | insig. | 38 | 97 |
| o | Rhodospirillum rubrum S1H | Rru_A0540 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | insig. | 44 | 84 |
| | Pseudomonas orientalis W4I3 | QF045_RS08450 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 97 |
| | Variovorax sp. SCN45 | GFF7323 | | Transcriptional response regulatory protein GlrR | insig. | 44 | 76 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_01292 | | Regulatory protein AtoC | cofit | 39 | 97 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2114 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | insig. | 37 | 98 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1063 | flrC | transcriptional regulatory protein (TIGR) | strong | 41 | 94 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 38 | 97 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 38 | 97 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2149 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 37 | 97 |
| | Pseudomonas stutzeri RCH2 | Psest_4267 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 44 | 74 |
| | Pseudomonas sp. SVBP6 | COO64_RS00595 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 97 |
| | Azospirillum sp. SherDot2 | MPMX19_03461 | | Regulatory protein AtoC | insig. | 38 | 96 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0215 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 36 | 97 |
| | Methylophilus sp. DMC18 | GFF2815 | | Regulatory protein AtoC | insig. | 39 | 97 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_16225 | | Fis family transcriptional regulator | insig. | 37 | 97 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1461 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 43 | 75 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS09370 | cbrB;inference=COORDINATES | two-component system response regulator CbrB | strong | 42 | 76 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_29980 | | two-component system response regulator CbrB | strong | 42 | 76 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS52660 | cbrB;inference=COORDINATES | two-component system response regulator CbrB | strong | 42 | 76 |
| o | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2455 | | Putative sensory histidine kinase YfhA | strong | 41 | 82 |
| o | Caulobacter crescentus NA1000 | CCNA_00954 | | AAA-family response regulator flbD | strong | 43 | 84 |
| o | Caulobacter crescentus NA1000 Δfur | CCNA_00954 | | AAA-family response regulator flbD | cofit | 43 | 84 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3220 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 37 | 97 |
| o | Serratia liquefaciens MT49 | IAI46_19460 | | two-component system response regulator GlrR | sig. | 42 | 82 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1260 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 39 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2200 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 35 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2748 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 43 | 75 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04045 | | Transcriptional regulatory protein ZraR | insig. | 37 | 96 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_10090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 98 |
| o | Klebsiella michiganensis M5al | BWI76_RS21250 | | two-component system response regulator GlrR | strong | 41 | 82 |
| | Pseudomonas segetis P6 | ACVTMO_RS06070 | | sigma-54-dependent transcriptional regulator | no data | 43 | 76 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF610 | | Putative sensory histidine kinase YfhA | insig. | 45 | 75 |
| | Variovorax sp. OAS795 | ABID97_RS06460 | | sigma 54-interacting transcriptional regulator | cofit | 44 | 76 |
| | Pseudomonas simiae WCS417 | PS417_05525 | | Fis family transcriptional regulator | strong | 38 | 97 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_1489 | | Type IV fimbriae expression regulatory protein PilR | insig. | 36 | 97 |
| | Pseudomonas putida KT2440 | PP_4696 | | Nitrogen regulation protein NR(I) | strong | 42 | 77 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS25735 | | sigma-54-dependent Fis family transcriptional regulator | strong | 39 | 95 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS25735 | | sigma-54-dependent Fis family transcriptional regulator | strong | 39 | 95 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS23710 | | response regulator GlrR | insig. | 46 | 70 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3381 | ntrC | transcriptional regulatory protein zraR (TIGR) | strong | 40 | 97 |
| | Dickeya dadantii 3937 | DDA3937_RS15640 | | two-component system response regulator GlrR | cofit | 39 | 90 |
| | Klebsiella pneumoniae MRSN742743 | KFA93_RS24385 | zraR;go_function=sequence-specific | sigma-54-dependent response regulator transcription factor ZraR | insig. | 36 | 98 |
| | Pseudomonas sp. BP01 | JOY50_RS26420 | | sigma-54 dependent transcriptional regulator | insig. | 43 | 74 |
| | Pseudomonas sp. S08-1 | OH686_17260 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 42 | 77 |
| | Dickeya dianthicola 67-19 | HGI48_RS15735 | | two-component system response regulator GlrR | insig. | 39 | 90 |
| | Dickeya dianthicola ME23 | DZA65_RS16815 | | two-component system response regulator GlrR | insig. | 39 | 90 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS01400 | | sigma-54-dependent Fis family transcriptional regulator | strong | 38 | 97 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS01400 | | sigma-54-dependent Fis family transcriptional regulator | strong | 38 | 97 |
| | Pseudomonas sp. BP01 | JOY50_RS27675 | | sigma-54 dependent transcriptional regulator | cofit | 42 | 77 |
| | Methylophilus sp. DMC18 | GFF2304 | | Regulatory protein AtoC | cofit | 37 | 97 |
| | Pseudomonas sp. DMC3 | GFF4000 | | Regulatory protein AtoC | cofit | 36 | 99 |
| | Pseudomonas orientalis W4I3 | QF045_RS26155 | | sigma-54 dependent transcriptional regulator | strong | 42 | 77 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_28370 | | two-component system response regulator QseF/GlrR | insig. | 40 | 82 |
| | Klebsiella pneumoniae MRSN742743 | KFA93_RS04790 | glrR;go_function=ATP | two-component system response regulator GlrR | sig. | 40 | 82 |
| | Pseudomonas sp. S08-1 | OH686_14355 | | C4-dicarboxylate transport transcriptional regulatory protein | strong | 38 | 97 |
| | Escherichia fergusonii Becca | EFB2_04606 | | Transcriptional regulatory protein ZraR | insig. | 37 | 96 |
| | Escherichia coli ECOR38 | HEPCGN_11960 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Escherichia coli ECOR27 | NOLOHH_05465 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 36 | 96 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13516_RS05235 | glrR | two-component system response regulator GlrR | cofit | 42 | 82 |
| | Pseudomonas orientalis W4I3 | QF045_RS04425 | | sigma-54 dependent transcriptional regulator | cofit | 43 | 74 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1419 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 38 | 97 |
| | Marinobacter adhaerens HP15 | HP15_523 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 38 | 98 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_00486 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | cofit | 43 | 74 |
| | Rhodospirillum rubrum S1H | Rru_A1385 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | cofit | 38 | 96 |
| | Escherichia coli BL21 | ECD_03881 | | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein | insig. | 37 | 96 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04930 | | Transcriptional regulatory protein ZraR | cofit | 39 | 95 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5156 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 39 | 95 |
| | Pseudomonas simiae WCS417 | PS417_01305 | | Fis family transcriptional regulator | sig. | 43 | 74 |
| | Pseudomonas protegens RBAN4 | FABNJH_01565 | dctD | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 38 | 99 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_16075 | | Fis family transcriptional regulator | strong | 38 | 95 |
| o | Enterobacter sp. TBS_079 | MPMX20_03423 | | Transcriptional regulatory protein QseF | sig. | 40 | 82 |
| | Pseudomonas simiae WCS417 | PS417_23895 | | Fis family transcriptional regulator | no data | 42 | 77 |
| | Escherichia fergusonii Becca | EFB2_01342 | | Transcriptional regulatory protein QseF | insig. | 41 | 83 |
| | Escherichia coli ECOR27 | NOLOHH_13170 | qseF | two-component system response regulator QseF/GlrR | strong | 41 | 83 |
| o | Escherichia coli ECRC62 | BNILDI_11970 | qseF | two-component system response regulator QseF/GlrR | strong | 41 | 83 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01153 | | Transcriptional regulatory protein GlrR | insig. | 41 | 83 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS14455 | | two-component system response regulator GlrR | strong | 41 | 83 |
| | Rahnella sp. WP5 | EX31_RS20615 | | two-component system response regulator GlrR | insig. | 41 | 82 |
| | Pseudomonas stutzeri RCH2 | Psest_4174 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 41 | 86 |
| | Pantoea sp. MT58 | IAI47_04945 | | two-component system response regulator GlrR | sig. | 42 | 82 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_3020 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 41 | 83 |
| | Pectobacterium carotovorum WPP14 | HER17_RS05925 | | two-component system response regulator GlrR | cofit | 37 | 90 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4011 | | Putative sensory histidine kinase YfhA | sig. | 44 | 74 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_0196 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 43 | 74 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_0831 | | Two-component response regulator CbrB | sig. | 43 | 77 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0831 | | Two-component response regulator CbrB | no data | 43 | 77 |
| | Escherichia coli ECOR38 | HEPCGN_20640 | qseF | two-component system response regulator QseF/GlrR | strong | 41 | 83 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS30045 | | ATPase AAA | insig. | 38 | 97 |
| | Escherichia coli BW25113 | b4004 | zraR | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein (NCBI) | insig. | 37 | 96 |
| | Escherichia coli ECRC62 | BNILDI_06055 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Klebsiella michiganensis M5al | BWI76_RS01605 | | transcriptional regulatory protein ZraR | insig. | 37 | 98 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_14400 | | Fis family transcriptional regulator | strong | 42 | 77 |
| o | Enterobacter asburiae PDN3 | EX28DRAFT_0096 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | sig. | 40 | 82 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4188 | | Response regulator of zinc sigma-54-dependent two-component system | insig. | 36 | 96 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_2074 | | Sigma-54 interaction domain/Bacterial regulatory protein, Fis family | cofit | 46 | 72 |
| | Pseudomonas sp. SVBP6 | COO64_RS15090 | | sigma-54 dependent transcriptional regulator | strong | 42 | 77 |
| | Marinobacter adhaerens HP15 | HP15_328 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 41 | 75 |
| | Pseudomonas sp. RS175 | PFR28_03718 | | Transcriptional regulatory protein ZraR | strong | 38 | 95 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2818 | | Type IV fimbriae expression regulatory protein PilR | insig. | 35 | 97 |
| | Pseudomonas sp. DMC3 | GFF4030 | | Transcriptional regulatory protein ZraR | strong | 42 | 77 |
| | Escherichia coli BL21 | ECD_02446 | | response regulator regulating glmY sRNA in two-component system with sensor protein GlrK | sig. | 41 | 83 |
| o | Escherichia coli ECRC100 | OKFHMN_21495 | qseF | two-component system response regulator QseF/GlrR | cofit | 41 | 83 |
| o | Escherichia coli ECRC101 | MCAODC_12025 | qseF | two-component system response regulator QseF/GlrR | cofit | 41 | 83 |
| o | Escherichia coli ECRC102 | NIAGMN_19265 | qseF | two-component system response regulator QseF/GlrR | cofit | 41 | 83 |
| o | Escherichia coli ECRC98 | JDDGAC_25160 | qseF | two-component system response regulator QseF/GlrR | cofit | 41 | 83 |
| o | Escherichia coli ECRC99 | KEDOAH_06725 | qseF | two-component system response regulator QseF/GlrR | no data | 41 | 83 |
| | Escherichia coli BW25113 | b2554 | yfhA | predicted DNA-binding response regulator in two-component system (NCBI) | sig. | 41 | 83 |
| | Agrobacterium fabrum C58 | Atu3764 | | sigma 54 dependent transcriptional activator | sig. | 36 | 98 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_11860 | | Fis family transcriptional regulator | strong | 39 | 97 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_1666 | | C4-dicarboxylate transport transcriptional regulatory protein | sig. | 38 | 97 |
| | Serratia liquefaciens MT49 | IAI46_24960 | | nitrogen regulation protein NR(I) | strong | 35 | 98 |
| | Pseudomonas sp. DMC3 | GFF4159 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 38 | 97 |
| | Bosea sp. OAE506 | ABIE41_RS10895 | | sigma-54 dependent transcriptional regulator | insig. | 45 | 73 |
| | Azospirillum brasilense Sp245 | AZOBR_RS20165 | | ATPase AAA | strong | 37 | 99 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS17060 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 37 | 86 |
| | Escherichia coli ECRC101 | MCAODC_03820 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 36 | 96 |
| | Escherichia coli ECRC102 | NIAGMN_11070 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 36 | 96 |
| | Escherichia coli ECRC99 | KEDOAH_14840 | zraR | sigma-54-dependent response regulator transcription factor ZraR | no data | 36 | 96 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS09765 | | sigma-54 dependent transcriptional regulator | insig. | 47 | 74 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_14600 | | sigma-54-dependent Fis family transcriptional regulator | no data | 45 | 72 |
| | Erwinia tracheiphila SCR3 | LU632_RS20500 | | sigma-54 dependent transcriptional regulator | no data | 45 | 72 |
| | Pseudomonas stutzeri RCH2 | Psest_0999 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 42 | 76 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2858 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 42 | 77 |
| | Pseudomonas protegens RBAN4 | FABNJH_26640 | atoC | DNA-binding transcriptional response regulator, NtrC family, contains REC, AAA-type ATPase, and a Fis-type DNA-binding domains | strong | 42 | 77 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS04160 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 41 | 74 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_10065 | | Fis family transcriptional regulator | strong | 38 | 97 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS12650 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 78 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_09635 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 36 | 96 |
| | Rhodopseudomonas palustris CGA009 | TX73_006510 | | sigma-54 dependent transcriptional regulator | strong | 45 | 74 |
| | Pseudomonas putida KT2440 | PP_0263 | | C4-dicarboxylate transport transcriptional regulatory protein | strong | 43 | 74 |
| | Alteromonas macleodii MIT1002 | MIT1002_01326 | | Quorum-sensing regulator protein F | insig. | 41 | 75 |
| | Pseudomonas putida KT2440 | PP_3419 | | Sigma-54 dependent transcriptional regulator/response regulator | sig. | 36 | 97 |
| | Pectobacterium carotovorum WPP14 | HER17_RS21440 | | nitrogen regulation protein NR(I) | cofit | 36 | 98 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS01375 | | sigma-54 dependent transcriptional regulator | strong | 41 | 74 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_02930 | qseF | two-component system response regulator QseF/GlrR | cofit | 41 | 82 |
| | Erwinia tracheiphila SCR3 | LU632_RS17930 | glrR | two-component system response regulator GlrR | insig. | 41 | 82 |
| | Agrobacterium fabrum C58 | Atu0114 | | two component response regulator | insig. | 38 | 89 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS23710 | pilR;inference=COORDINATES | two-component system response regulator PilR | strong | 36 | 99 |
| | Pseudomonas sp. RS175 | PFR28_03751 | | Regulatory protein AtoC | insig. | 35 | 97 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_1524 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 41 | 77 |
| | Shewanella loihica PV-4 | Shew_2341 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | insig. | 40 | 77 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_15905 | | transcriptional regulator | insig. | 35 | 97 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_3883 | | C4-dicarboxylate transport transcriptional regulatory protein | strong | 38 | 97 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_401 | | C4-dicarboxylate transport transcriptional regulatory protein | strong | 43 | 73 |
| | Pseudomonas sp. RS175 | PFR28_04889 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | strong | 38 | 97 |
| | Sinorhizobium meliloti 1021 | SMc01043 | | nitrogen assimilation regulatory protein | strong | 37 | 99 |
| | Pseudomonas segetis P6 | ACVTMO_RS21725 | | sigma-54-dependent transcriptional regulator | sig. | 43 | 74 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5122 | | Type IV fimbriae expression regulatory protein PilR | insig. | 35 | 97 |
| | Agrobacterium fabrum C58 | Atu1446 | | two component response regulator | strong | 37 | 99 |
| | Pseudomonas segetis P6 | ACVTMO_RS19460 | | sigma-54-dependent transcriptional regulator | cofit | 36 | 99 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_14200 | | transcriptional regulator | insig. | 35 | 97 |
| | Escherichia coli ECRC98 | JDDGAC_16945 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 36 | 96 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_1806 | | Nitrogen regulation protein NR(I) | strong | 41 | 74 |
| | Pseudomonas sp. RS175 | PFR28_03462 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | strong | 40 | 81 |
| | Rhizobium sp. OAE497 | ABIE40_RS09090 | | nitrogen regulation protein NR(I) | strong | 37 | 99 |
| | Escherichia coli ECRC100 | OKFHMN_13320 | zraR | sigma-54-dependent response regulator transcription factor ZraR | cofit | 36 | 96 |
| | 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 |
| | Enterobacter sp. TBS_079 | MPMX20_04597 | | DNA-binding transcriptional regulator NtrC | strong | 35 | 98 |
| | Cellulophaga baltica 18 | M666_RS02825 | | sigma-54 dependent transcriptional regulator | strong | 40 | 78 |
| | Azospirillum sp. SherDot2 | MPMX19_04090 | | Anaerobic nitric oxide reductase transcription regulator NorR | cofit | 37 | 99 |
| | Rhizobium sp. OAE497 | ABIE40_RS15425 | | sigma-54 dependent transcriptional regulator | strong | 36 | 97 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_4350 | | nitrogen regulation protein NR(I) | insig. | 35 | 98 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_17800 | | C4-dicarboxylate ABC transporter | strong | 41 | 74 |
| | Ralstonia solanacearum GMI1000 | RS_RS01635 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 74 |
| | Pseudomonas stutzeri RCH2 | Psest_3911 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 39 | 79 |
| | Rhodopseudomonas palustris CGA009 | TX73_021705 | | sigma-54 dependent transcriptional regulator | sig. | 38 | 96 |
| | Xanthobacter sp. DMC5 | GFF848 | | DNA-binding transcriptional regulator NtrC | no data | 37 | 99 |
| | Variovorax sp. SCN45 | GFF3066 | | Nitrogen regulation protein NR(I), GlnG (=NtrC) | no data | 35 | 97 |
| | Pseudomonas sp. SVBP6 | COO64_RS16760 | | sigma-54 dependent transcriptional regulator | insig. | 42 | 75 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS10795 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 74 |
| | Ralstonia solanacearum UW163 | UW163_RS02785 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 74 |
| | Pseudomonas sp. DMC3 | GFF5041 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | cofit | 41 | 74 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS22520 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 74 |
| | Escherichia coli BL21 | ECD_03753 | | fused DNA-binding response regulator in two-component regulatory system with GlnL: response regulator/sigma54 interaction protein | insig. | 35 | 98 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS09115 | | sigma-54 dependent transcriptional regulator | insig. | 40 | 76 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_4938 | | Helix-turn-helix, Fis-type | sig. | 42 | 74 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_4938 | | Helix-turn-helix, Fis-type | insig. | 42 | 74 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_03805 | | C4-dicarboxylate ABC transporter | strong | 42 | 74 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS23315 | | sigma-54-dependent Fis family transcriptional regulator | strong | 36 | 96 |
| | Ralstonia solanacearum UW163 | UW163_RS16565 | | sigma-54-dependent Fis family transcriptional regulator | strong | 36 | 96 |
| | Escherichia coli ECOR27 | NOLOHH_06240 | glnG | nitrogen regulation protein NR(I) | insig. | 35 | 98 |
| | Escherichia coli ECRC100 | OKFHMN_14110 | glnG | nitrogen regulation protein NR(I) | insig. | 35 | 98 |
| | Escherichia coli ECRC101 | MCAODC_04610 | glnG | nitrogen regulation protein NR(I) | strong | 35 | 98 |
| | Escherichia coli ECRC102 | NIAGMN_11865 | glnG | nitrogen regulation protein NR(I) | insig. | 35 | 98 |
| | Escherichia coli ECRC98 | JDDGAC_17735 | glnG | nitrogen regulation protein NR(I) | no data | 35 | 98 |
| | Escherichia coli ECRC99 | KEDOAH_14040 | glnG | nitrogen regulation protein NR(I) | no data | 35 | 98 |
| | Escherichia coli BW25113 | b3868 | glnG | fused DNA-binding response regulator in two-component regulatory system with GlnL: response regulator/sigma54 interaction protein (NCBI) | strong | 35 | 98 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_09000 | | nitrogen regulation protein NR(I) | insig. | 35 | 98 |
| | Pseudomonas sp. BP01 | JOY50_RS14825 | | sigma-54 dependent transcriptional regulator | insig. | 42 | 75 |
| | Escherichia coli ECRC62 | BNILDI_05290 | glnG | nitrogen regulation protein NR(I) | cofit | 35 | 98 |
| | Pseudomonas putida KT2440 | PP_1066 | | C4-dicarboxylate transport transcriptional regulatory protein | strong | 42 | 75 |
| | Pseudomonas simiae WCS417 | PS417_22645 | | C4-dicarboxylate ABC transporter | sig. | 42 | 74 |
| | Cellulophaga baltica 18 | M666_RS03195 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 76 |
| | Pseudomonas protegens RBAN4 | FABNJH_24290 | dctD | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 41 | 74 |
| | Pseudomonas orientalis W4I3 | QF045_RS24815 | | sigma-54 dependent transcriptional regulator | insig. | 41 | 74 |
| | Dechlorosoma suillum PS | Dsui_3486 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 41 | 75 |
| | Paraburkholderia graminis OAS925 | ABIE53_000648 | | two-component system C4-dicarboxylate transport response regulator DctD | insig. | 41 | 74 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS09195 | | Fis family transcriptional regulator | strong | 39 | 75 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0137 | | nitrogen regulation protein NR(I) | strong | 35 | 99 |
| | Dickeya dadantii 3937 | DDA3937_RS00125 | | nitrogen regulation protein NR(I) | cofit | 35 | 98 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04184 | | DNA-binding transcriptional regulator NtrC | sig. | 35 | 98 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2220 | | Nitrogen regulation protein NR(I) | strong | 35 | 98 |