| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Magnetospirillum magneticum AMB-1 | AMB_RS11550 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 100 | 100 |
| o | Rhodopseudomonas palustris CGA009 | TX73_005040 | | sigma-54 dependent transcriptional regulator | insig. | 65 | 100 |
| o | Dechlorosoma suillum PS | Dsui_1154 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 59 | 99 |
| o | Rhodospirillum rubrum S1H | Rru_A1170 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | insig. | 59 | 100 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF2210 | | Hydrogenase transcriptional regulatory protein HoxA | insig. | 56 | 99 |
| o | Variovorax sp. OAS795 | ABID97_RS13590 | | sigma-54 dependent transcriptional regulator | insig. | 56 | 99 |
| o | Azospirillum sp. SherDot2 | MPMX19_05290 | | Hydrogenase transcriptional regulatory protein hupR1 | insig. | 54 | 99 |
| o | Xanthobacter sp. DMC5 | GFF4433 | | Hydrogenase transcriptional regulatory protein hupR1 | insig. | 53 | 100 |
| o | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS12650 | | sigma-54 dependent transcriptional regulator | insig. | 42 | 84 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 39 | 100 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 39 | 100 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 39 | 100 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 39 | 100 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 39 | 100 |
| | 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 | 100 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3220 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 39 | 99 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2200 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 39 | 98 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_16225 | | Fis family transcriptional regulator | insig. | 42 | 85 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 39 | 98 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 39 | 98 |
| | Pseudomonas orientalis W4I3 | QF045_RS08450 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 98 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_01292 | | Regulatory protein AtoC | cofit | 38 | 98 |
| | Azospirillum sp. SherDot2 | MPMX19_03461 | | Regulatory protein AtoC | insig. | 39 | 99 |
| | Pseudomonas simiae WCS417 | PS417_05525 | | Fis family transcriptional regulator | strong | 38 | 98 |
| o | Pseudomonas sp. BP01 | JOY50_RS23625 | | sigma-54 dependent transcriptional regulator | no data | 38 | 99 |
| o | Pseudomonas putida KT2440 | PP_3419 | | Sigma-54 dependent transcriptional regulator/response regulator | sig. | 38 | 99 |
| o | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS14460 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2601 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 40 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0823 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 40 | 99 |
| | Marinobacter adhaerens HP15 | HP15_328 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 37 | 99 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0946 | | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 37 | 98 |
| | Xanthobacter sp. DMC5 | GFF4834 | | Regulatory protein AtoC | insig. | 41 | 83 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_09510 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 37 | 99 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0539 | | sigma-54 dependent DNA-binding response regulator (TIGR) | sig. | 39 | 98 |
| o | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS01040 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 39 | 84 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1461 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 38 | 99 |
| | Pseudomonas sp. DMC3 | GFF4000 | | Regulatory protein AtoC | cofit | 36 | 98 |
| | Pseudomonas putida KT2440 | PP_4696 | | Nitrogen regulation protein NR(I) | strong | 42 | 84 |
| | Pseudomonas sp. SVBP6 | COO64_RS15090 | | sigma-54 dependent transcriptional regulator | strong | 42 | 84 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_14400 | | Fis family transcriptional regulator | strong | 41 | 84 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_14055 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 37 | 98 |
| | Klebsiella michiganensis M5al | BWI76_RS21250 | | two-component system response regulator GlrR | sig. | 38 | 99 |
| | Caulobacter crescentus NA1000 | CCNA_03424 | | AAA-family response regulator tacA | strong | 37 | 98 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_03424 | | AAA-family response regulator tacA | cofit | 37 | 98 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5156 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 41 | 84 |
| | Serratia liquefaciens MT49 | IAI46_19460 | | two-component system response regulator GlrR | sig. | 37 | 99 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS23710 | pilR;inference=COORDINATES | two-component system response regulator PilR | strong | 37 | 98 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_16075 | | Fis family transcriptional regulator | strong | 41 | 84 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_04380 | | response regulator | strong | 38 | 84 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_02275 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 36 | 99 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS15800 | | sigma-54-dependent Fis family transcriptional regulator | strong | 35 | 99 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2858 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 42 | 84 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1360 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 40 | 84 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_02930 | qseF | two-component system response regulator QseF/GlrR | cofit | 38 | 99 |
| | Erwinia tracheiphila SCR3 | LU632_RS17930 | glrR | two-component system response regulator GlrR | insig. | 38 | 99 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_00790 | | two-component response regulator PilR | strong | 37 | 98 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS56175 | pilR;inference=COORDINATES | two-component system response regulator PilR | strong | 37 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1993 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 38 | 99 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS14835 | | two-component system response regulator GlrR | cofit | 37 | 99 |
| | Alteromonas macleodii MIT1002 | MIT1002_01326 | | Quorum-sensing regulator protein F | insig. | 37 | 100 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5122 | | Type IV fimbriae expression regulatory protein PilR | insig. | 36 | 98 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04930 | | Transcriptional regulatory protein ZraR | cofit | 42 | 84 |
| | Pantoea sp. MT58 | IAI47_04945 | | two-component system response regulator GlrR | sig. | 37 | 99 |
| | Pseudomonas sp. BP01 | JOY50_RS27675 | | sigma-54 dependent transcriptional regulator | cofit | 42 | 84 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_0831 | | Two-component response regulator CbrB | sig. | 41 | 84 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0831 | | Two-component response regulator CbrB | no data | 41 | 84 |
| | Variovorax sp. OAS795 | ABID97_RS06460 | | sigma 54-interacting transcriptional regulator | cofit | 40 | 84 |
| | Marinobacter adhaerens HP15 | HP15_2328 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 37 | 97 |
| | Rhodospirillum rubrum S1H | Rru_A1385 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | cofit | 37 | 98 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2818 | | Type IV fimbriae expression regulatory protein PilR | insig. | 35 | 98 |
| | Pseudomonas sp. DMC3 | GFF4030 | | Transcriptional regulatory protein ZraR | strong | 41 | 84 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2149 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 39 | 99 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2455 | | Putative sensory histidine kinase YfhA | strong | 37 | 99 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS04160 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 35 | 98 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_17800 | | C4-dicarboxylate ABC transporter | strong | 38 | 99 |
| | Dickeya dadantii 3937 | DDA3937_RS15640 | | two-component system response regulator GlrR | cofit | 37 | 99 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS03655 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 36 | 98 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS11790 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 36 | 99 |
| | Azospirillum brasilense Sp245 | AZOBR_RS26130 | | ATPase AAA | insig. | 41 | 80 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_28370 | | two-component system response regulator QseF/GlrR | insig. | 37 | 99 |
| | Variovorax sp. SCN45 | GFF7323 | | Transcriptional response regulatory protein GlrR | insig. | 39 | 84 |
| | Dickeya dianthicola 67-19 | HGI48_RS15735 | | two-component system response regulator GlrR | insig. | 37 | 99 |
| | Dickeya dianthicola ME23 | DZA65_RS16815 | | two-component system response regulator GlrR | insig. | 37 | 99 |
| | Escherichia coli ECRC62 | BNILDI_11970 | qseF | two-component system response regulator QseF/GlrR | strong | 37 | 99 |
| | Pseudomonas sp. RS175 | PFR28_03718 | | Transcriptional regulatory protein ZraR | strong | 41 | 84 |
| | Escherichia fergusonii Becca | EFB2_01342 | | Transcriptional regulatory protein QseF | insig. | 37 | 99 |
| | Escherichia coli ECOR27 | NOLOHH_13170 | qseF | two-component system response regulator QseF/GlrR | cofit | 37 | 99 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01153 | | Transcriptional regulatory protein GlrR | insig. | 37 | 99 |
| | Rahnella sp. WP5 | EX31_RS20615 | | two-component system response regulator GlrR | insig. | 38 | 99 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0110 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | cofit | 37 | 99 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS14455 | | two-component system response regulator GlrR | strong | 37 | 99 |
| | Escherichia coli ECOR38 | HEPCGN_20640 | qseF | two-component system response regulator QseF/GlrR | strong | 37 | 99 |
| | Enterobacter sp. TBS_079 | MPMX20_03423 | | Transcriptional regulatory protein QseF | sig. | 36 | 99 |
| | Pseudomonas sp. S08-1 | OH686_17260 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 42 | 84 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS25735 | | sigma-54-dependent Fis family transcriptional regulator | strong | 41 | 84 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS25735 | | sigma-54-dependent Fis family transcriptional regulator | strong | 41 | 84 |
| | Escherichia coli BL21 | ECD_02446 | | response regulator regulating glmY sRNA in two-component system with sensor protein GlrK | sig. | 37 | 99 |
| | Escherichia coli ECRC100 | OKFHMN_21495 | qseF | two-component system response regulator QseF/GlrR | cofit | 37 | 99 |
| | Escherichia coli ECRC101 | MCAODC_12025 | qseF | two-component system response regulator QseF/GlrR | cofit | 37 | 99 |
| | Escherichia coli ECRC102 | NIAGMN_19265 | qseF | two-component system response regulator QseF/GlrR | cofit | 37 | 99 |