| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4261 | | Propionate catabolism operon regulatory protein PrpR | insig. | 100 | 100 |
| o | Escherichia fergusonii Becca | EFB2_03707 | | Propionate catabolism operon regulatory protein | insig. | 80 | 97 |
| o | Escherichia coli Nissle 1917 | ECOLIN_RS02145 | | propionate catabolism operon regulatory protein PrpR | insig. | 80 | 97 |
| o | Escherichia coli BW25113 | b0330 | prpR | DNA-binding transcriptional activator (NCBI) | insig. | 80 | 97 |
| o | Escherichia coli ECOR27 | NOLOHH_01780 | prpR | propionate catabolism operon regulatory protein PrpR | insig. | 79 | 97 |
| o | Escherichia coli ECRC62 | BNILDI_23195 | prpR | propionate catabolism operon regulatory protein PrpR | cofit | 79 | 97 |
| o | Escherichia coli ECOR38 | HEPCGN_07490 | prpR | propionate catabolism operon regulatory protein PrpR | insig. | 79 | 97 |
| o | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_03340 | | Propionate catabolism operon regulatory protein | insig. | 79 | 97 |
| o | Escherichia coli ECRC100 | OKFHMN_08905 | prpR | propionate catabolism operon regulatory protein PrpR | cofit | 79 | 97 |
| o | Escherichia coli ECRC101 | MCAODC_28135 | prpR | propionate catabolism operon regulatory protein PrpR | insig. | 79 | 97 |
| o | Escherichia coli ECRC102 | NIAGMN_06960 | prpR | propionate catabolism operon regulatory protein PrpR | cofit | 79 | 97 |
| o | Escherichia coli ECRC98 | JDDGAC_12560 | prpR | propionate catabolism operon regulatory protein PrpR | insig. | 79 | 97 |
| o | Escherichia coli ECRC99 | KEDOAH_19060 | prpR | propionate catabolism operon regulatory protein PrpR | no data | 79 | 97 |
| o | Escherichia coli BL21 | ECD_00285 | | propionate catabolism operon regulatory protein | insig. | 79 | 97 |
| o | Herbaspirillum seropedicae SmR1 | HSERO_RS15665 | | propionate catabolism operon regulatory protein PrpR | insig. | 62 | 97 |
| o | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.3982.1 | | Propionate catabolism operon regulatory protein PrpR | strong | 45 | 97 |
| o | Pseudomonas sp. BP01 | JOY50_RS25235 | prpR | propionate catabolism operon regulatory protein PrpR | insig. | 40 | 94 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS00405 | | propionate catabolism operon regulatory protein PrpR | insig. | 47 | 64 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS22815 | | propionate catabolism operon regulatory protein PrpR | insig. | 48 | 59 |
| | Ralstonia solanacearum UW163 | UW163_RS23435 | | propionate catabolism operon regulatory protein PrpR | insig. | 48 | 59 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS31075 | | propionate catabolism operon regulatory protein PrpR | insig. | 45 | 66 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS30155 | | Fis family transcriptional regulator | strong | 46 | 70 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS16750 | | propionate catabolism operon regulatory protein PrpR | strong | 46 | 60 |
| | Ralstonia solanacearum GMI1000 | RS_RS17745 | | propionate catabolism operon regulatory protein PrpR | sig. | 48 | 59 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_06328 | | transcriptional regulator, propionate catabolism operon regulatory protein | strong | 43 | 70 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_02891 | | transcriptional regulator, propionate catabolism operon regulatory protein | sig. | 41 | 70 |
| | Paraburkholderia graminis OAS925 | ABIE53_005903 | | propionate catabolism operon transcriptional regulator | strong | 44 | 64 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_06211 | | transcriptional regulator, propionate catabolism operon regulatory protein | insig. | 41 | 81 |
| | Paraburkholderia graminis OAS925 | ABIE53_005041 | | propionate catabolism operon transcriptional regulator | strong | 45 | 71 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS11255 | | Fis family transcriptional regulator | strong | 44 | 59 |
| | Pseudomonas aeruginosa PUPa3 | NPBIFN_02936 | prpR | propionate catabolism operon regulatory protein PrpR | insig. | 47 | 59 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_10840 | | propionate catabolism operon regulatory protein PrpR | sig. | 47 | 59 |
| | Pseudomonas aeruginosa MRSN321 | PFGADD_02899 | prpR | propionate catabolism operon regulatory protein PrpR | insig. | 47 | 59 |
| | Pseudomonas putida KT2440 | PP_2790 | | Sigma-54 dependent sensory box protein | strong | 46 | 59 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS26850 | | ATPase AAA | strong | 42 | 68 |
| | Serratia liquefaciens MT49 | IAI46_12235 | | sigma 54-interacting transcriptional regulator | insig. | 45 | 60 |
| | Pseudomonas putida KT2440 | PP_1066 | | C4-dicarboxylate transport transcriptional regulatory protein | strong | 47 | 58 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_07640 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 42 | 61 |
| | Marinobacter adhaerens HP15 | HP15_2597 | | two component, sigma54 specific, transcriptional regulator, Fis family | cofit | 42 | 58 |
| | Pantoea sp. MT58 | IAI47_19790 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 42 | 60 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 42 | 61 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 42 | 61 |
| | Escherichia coli BW25113 | b2220 | atoC | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein (NCBI) | insig. | 42 | 61 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 42 | 61 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_09510 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 42 | 63 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 42 | 61 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 42 | 61 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_776 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | insig. | 45 | 58 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_16265 | | Fis family transcriptional regulator | strong | 46 | 58 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS16365 | | sigma 54-interacting transcriptional regulator | insig. | 41 | 57 |
| | Klebsiella michiganensis M5al | BWI76_RS26560 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 40 | 60 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_18205 | | Fis family transcriptional regulator | insig. | 45 | 58 |
| | Pseudomonas sp. DMC3 | GFF5115 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 45 | 58 |
| | Shewanella amazonensis SB2B | Sama_1549 | | response regulator receiver protein (RefSeq) | insig. | 45 | 57 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3305 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | strong | 44 | 58 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5565 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | insig. | 45 | 58 |
| | Pseudomonas sp. BP01 | JOY50_RS14825 | | sigma-54 dependent transcriptional regulator | insig. | 45 | 58 |
| | Pseudomonas simiae WCS417 | PS417_05535 | | Fis family transcriptional regulator | strong | 44 | 58 |
| | Azospirillum sp. SherDot2 | MPMX19_03494 | | Regulatory protein AtoC | insig. | 45 | 61 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4775 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | strong | 45 | 58 |
| | Klebsiella michiganensis M5al | BWI76_RS21250 | | two-component system response regulator GlrR | strong | 45 | 59 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02740 | | Regulatory protein AtoC | cofit | 41 | 65 |
| | Pseudomonas sp. RS175 | PFR28_03376 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | sig. | 45 | 58 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS30045 | | ATPase AAA | insig. | 44 | 57 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_4389 | | Sigma-54 dependent transcriptional regulator | insig. | 43 | 60 |
| | Klebsiella michiganensis M5al | BWI76_RS10230 | | AAA family ATPase | no data | 41 | 60 |
| | Pseudomonas sp. SVBP6 | COO64_RS16760 | | sigma-54 dependent transcriptional regulator | insig. | 46 | 58 |
| | Shewanella amazonensis SB2B | Sama_0125 | | response regulator receiver protein (RefSeq) | strong | 44 | 59 |
| | Dechlorosoma suillum PS | Dsui_3286 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 45 | 57 |
| | Xanthobacter sp. DMC5 | GFF4834 | | Regulatory protein AtoC | insig. | 43 | 59 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS05620 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 44 | 58 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS05620 | | sigma-54-dependent Fis family transcriptional regulator | strong | 44 | 58 |
| | Pseudomonas protegens RBAN4 | FABNJH_24655 | | Sigma-54 dependent DNA-binding response regulator | insig. | 44 | 58 |
| | Shewanella oneidensis MR-1 | SO4718 | | sigma-54 dependent response regulator (NCBI ptt file) | sig. | 44 | 59 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 44 | 57 |
| | Klebsiella pneumoniae MRSN742743 | GJGHJB_04748 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 44 | 64 |
| | Sphingobium sp. HT1-2 | GFF1148 | | Nitrogen regulation protein NR(I), GlnG (=NtrC) | strong | 42 | 57 |
| | Shewanella sp. ANA-3 | Shewana3_4076 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | cofit | 44 | 58 |
| | Klebsiella michiganensis M5al | BWI76_RS17490 | | Fis family transcriptional regulator | insig. | 40 | 61 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_01294 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | strong | 44 | 58 |
| | Pseudomonas protegens RBAN4 | FABNJH_16045 | | Fis family transcriptional regulator | insig. | 44 | 58 |
| | Escherichia fergusonii Becca | EFB2_04606 | | Transcriptional regulatory protein ZraR | insig. | 44 | 57 |
| | Pseudomonas orientalis W4I3 | QF045_RS08460 | | sigma-54 dependent transcriptional regulator | cofit | 44 | 58 |
| | Pseudomonas simiae WCS417 | PS417_11085 | | ATPase AAA | insig. | 43 | 60 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4560 | | Propionate catabolism operon regulatory protein PrpR | insig. | 38 | 67 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_10090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 46 | 57 |
| | Escherichia coli ECOR38 | HEPCGN_11960 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 43 | 57 |
| | Shewanella loihica PV-4 | Shew_2341 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | insig. | 43 | 59 |
| | Azospirillum brasilense Sp245 | AZOBR_RS18445 | | chemotaxis protein CheY | insig. | 41 | 66 |
| | Escherichia coli BL21 | ECD_02383 | | hydrogenase-4 transcriptional activator | cofit | 44 | 61 |
| | Escherichia coli ECOR38 | HEPCGN_21015 | hyfR | DNA-binding transcriptional activator HyfR | insig. | 44 | 61 |
| | Escherichia coli ECRC100 | OKFHMN_21850 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 61 |
| | Escherichia coli ECRC101 | MCAODC_12380 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 61 |
| | Escherichia coli ECRC102 | NIAGMN_19620 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 61 |
| | Escherichia coli ECRC62 | BNILDI_12310 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 61 |
| | Escherichia coli ECRC98 | JDDGAC_25795 | hyfR | DNA-binding transcriptional regulator HyfR | insig. | 44 | 61 |
| | Escherichia coli ECRC99 | KEDOAH_06370 | hyfR | DNA-binding transcriptional regulator HyfR | no data | 44 | 61 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01235 | | DNA-binding transcriptional activator HyfR | cofit | 44 | 61 |
| | Escherichia coli BW25113 | b2491 | hyfR | putative 2-component regulator, interaction with sigma 54 (VIMSS) | sig. | 44 | 61 |
| | Shewanella loihica PV-4 | Shew_3682 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | strong | 44 | 58 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_27825 | | Fis family transcriptional regulator | insig. | 43 | 58 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_28370 | | two-component system response regulator QseF/GlrR | insig. | 44 | 59 |
| | Klebsiella pneumoniae MRSN742743 | GJGHJB_01232 | qseF | two-component system response regulator QseF/GlrR | sig. | 44 | 59 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_01779 | | DNA-binding transcriptional response regulator, NtrC family, contains REC, AAA-type ATPase, and a Fis-type DNA-binding domains | insig. | 44 | 57 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4188 | | Response regulator of zinc sigma-54-dependent two-component system | insig. | 43 | 62 |
| | Klebsiella michiganensis M5al | BWI76_RS01605 | | transcriptional regulatory protein ZraR | insig. | 41 | 63 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS11715 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 43 | 60 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS11715 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 43 | 60 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS04160 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 41 | 58 |
| | Pseudomonas sp. BP01 | JOY50_RS06050 | | sigma-54 dependent transcriptional regulator | insig. | 45 | 58 |
| | Pseudomonas sp. DMC3 | GFF3445 | | Transcriptional regulatory protein ZraR | cofit | 43 | 58 |
| | Dechlorosoma suillum PS | Dsui_3486 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 41 | 65 |
| | Escherichia coli BL21 | ECD_03881 | | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein | insig. | 43 | 57 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_00325 | | GAF modulated sigma54 specific transcriptional regulator, Fis family | insig. | 40 | 62 |
| | Pseudomonas orientalis W4I3 | QF045_RS13490 | | sigma 54-interacting transcriptional regulator | insig. | 43 | 60 |
| | 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 | 57 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS17060 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 41 | 58 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS16590 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 58 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_4731 | | Sigma-54 dependent transcriptional regulator | sig. | 43 | 58 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS01145 | | sigma-54-dependent Fis family transcriptional regulator | strong | 41 | 58 |
| | Pseudomonas sp. RS175 | PFR28_01679 | | Regulatory protein AtoC | sig. | 43 | 58 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0118 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | insig. | 43 | 59 |
| | Rhodopseudomonas palustris CGA009 | TX73_007055 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 38 | 60 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2455 | | Putative sensory histidine kinase YfhA | strong | 44 | 59 |
| | Escherichia coli ECRC101 | MCAODC_03820 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 43 | 57 |
| | Escherichia coli ECRC102 | NIAGMN_11070 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 43 | 57 |
| | Escherichia coli ECRC62 | BNILDI_06055 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 43 | 57 |
| | Escherichia coli ECRC99 | KEDOAH_14840 | zraR | sigma-54-dependent response regulator transcription factor ZraR | no data | 43 | 57 |
| | Escherichia fergusonii Becca | EFB2_01342 | | Transcriptional regulatory protein QseF | insig. | 43 | 59 |
| | Escherichia coli ECOR27 | NOLOHH_13170 | qseF | two-component system response regulator QseF/GlrR | strong | 43 | 59 |
| | Escherichia coli ECOR38 | HEPCGN_20640 | qseF | two-component system response regulator QseF/GlrR | strong | 43 | 59 |
| | Escherichia coli ECRC62 | BNILDI_11970 | qseF | two-component system response regulator QseF/GlrR | strong | 43 | 59 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01153 | | Transcriptional regulatory protein GlrR | insig. | 43 | 59 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS14455 | | two-component system response regulator GlrR | strong | 43 | 59 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_3006 | | Sigma-54 dependent transcriptional regulator | insig. | 43 | 58 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_763 | | Sigma-54 dependent transcriptional regulator | insig. | 43 | 57 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_2422 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 40 | 61 |
| | Acinetobacter baumannii LAC-4 | RR41_RS17800 | | sigma-54 dependent transcriptional regulator | insig. | 37 | 70 |
| | Pseudomonas sp. S08-1 | OH686_13325 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | cofit | 46 | 58 |
| | Pseudomonas stutzeri RCH2 | Psest_1071 | | Transcriptional regulator containing PAS, AAA-type ATPase, and DNA-binding domains | strong | 42 | 60 |
| | Lysobacter sp. OAE881 | ABIE51_RS00855 | | sigma-54 dependent transcriptional regulator | insig. | 44 | 57 |
| | Pseudomonas sp. DMC3 | GFF4030 | | Transcriptional regulatory protein ZraR | strong | 42 | 58 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02520 | | Anaerobic nitric oxide reductase transcription regulator NorR | cofit | 42 | 60 |
| | Pseudomonas sp. S08-1 | OH686_17260 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 42 | 58 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_29210 | | AAA family ATPase | insig. | 41 | 60 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS07095 | | sigma 54-interacting transcriptional regulator | insig. | 40 | 57 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS07365 | | sigma 54-interacting transcriptional regulator | insig. | 40 | 57 |
| | Pseudomonas putida KT2440 | PP_3503 | | Sigma-54 dependent transcriptional regulator | sig. | 45 | 57 |
| | Escherichia coli ECOR27 | NOLOHH_05465 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 43 | 57 |
| | Pseudomonas sp. SVBP6 | COO64_RS23875 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 43 | 59 |
| | Pseudomonas orientalis W4I3 | QF045_RS17445 | | sigma-54 dependent transcriptional regulator | insig. | 43 | 58 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS01040 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 39 | 64 |
| | Pseudomonas putida KT2440 | PP_0263 | | C4-dicarboxylate transport transcriptional regulatory protein | strong | 43 | 59 |
| | Azospirillum sp. SherDot2 | MPMX19_04512 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 42 | 60 |
| | Paraburkholderia graminis OAS925 | ABIE53_004383 | | transcriptional regulator of acetoin/glycerol metabolism | strong | 43 | 55 |
| | Variovorax sp. SCN45 | GFF3669 | | Two-component system response regulator protein | no data | 43 | 58 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2894 | flrA | sigma-54 dependent transcriptional regulator (TIGR) | strong | 41 | 59 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_14600 | | sigma-54-dependent Fis family transcriptional regulator | no data | 43 | 54 |
| | Erwinia tracheiphila SCR3 | LU632_RS20500 | | sigma-54 dependent transcriptional regulator | no data | 43 | 54 |
| | Dickeya dianthicola 67-19 | HGI48_RS15735 | | two-component system response regulator GlrR | insig. | 43 | 59 |
| | Escherichia coli BL21 | ECD_02446 | | response regulator regulating glmY sRNA in two-component system with sensor protein GlrK | sig. | 43 | 59 |
| | Escherichia coli ECRC100 | OKFHMN_21495 | qseF | two-component system response regulator QseF/GlrR | cofit | 43 | 59 |
| | Escherichia coli ECRC101 | MCAODC_12025 | qseF | two-component system response regulator QseF/GlrR | cofit | 43 | 59 |
| | Escherichia coli ECRC102 | NIAGMN_19265 | qseF | two-component system response regulator QseF/GlrR | cofit | 43 | 59 |
| | Escherichia coli ECRC98 | JDDGAC_25160 | qseF | two-component system response regulator QseF/GlrR | cofit | 43 | 59 |
| | Escherichia coli ECRC99 | KEDOAH_06725 | qseF | two-component system response regulator QseF/GlrR | no data | 43 | 59 |
| | Escherichia coli BW25113 | b2554 | yfhA | predicted DNA-binding response regulator in two-component system (NCBI) | sig. | 43 | 59 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2827 | | sigma-54 dependent transcriptional regulator (TIGR) | insig. | 40 | 58 |
| | Shewanella amazonensis SB2B | Sama_3427 | | response regulator receiver protein (RefSeq) | strong | 42 | 58 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0569 | flrA | sigma-54 dependent transcriptional regulator (TIGR) | sig. | 40 | 58 |
| | Dickeya dianthicola ME23 | DZA65_RS16815 | | two-component system response regulator GlrR | insig. | 43 | 59 |
| | Rahnella sp. WP5 | EX31_RS20615 | | two-component system response regulator GlrR | insig. | 41 | 64 |
| | Rhodospirillum rubrum S1H | Rru_A1385 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | cofit | 42 | 62 |
| | Pseudomonas segetis P6 | ACVTMO_RS06070 | | sigma-54-dependent transcriptional regulator | no data | 42 | 58 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS18245 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 41 | 57 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS03980 | | Fis family transcriptional regulator | strong | 41 | 57 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_1790 | | Sigma-54 dependent transcriptional regulator | insig. | 41 | 60 |
| | Pseudomonas aeruginosa MRSN321 | PFGADD_02745 | | Putative transcriptional regulator | insig. | 40 | 57 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1993 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 40 | 61 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1324 | | sigma54 specific transcriptional regulator, Fis family (RefSeq) | strong | 40 | 59 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_11530 | | Fis family transcriptional regulator | insig. | 40 | 57 |
| | Pseudomonas aeruginosa PUPa3 | NPBIFN_02776 | | Putative transcriptional regulator | insig. | 40 | 57 |
| | Escherichia fergusonii Becca | EFB2_04748 | | DNA-binding transcriptional regulator NtrC | strong | 40 | 58 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS23170 | | ATPase AAA | insig. | 44 | 59 |
| | Pseudomonas sp. SVBP6 | COO64_RS14675 | | sigma-54 dependent transcriptional regulator | insig. | 43 | 59 |
| | Escherichia coli ECRC100 | OKFHMN_13320 | zraR | sigma-54-dependent response regulator transcription factor ZraR | cofit | 43 | 57 |
| | Escherichia coli ECRC98 | JDDGAC_16945 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 43 | 57 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS15125 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 42 | 57 |
| | Ralstonia solanacearum UW163 | UW163_RS12595 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 42 | 57 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS10765 | | sigma-54 dependent transcriptional regulator | insig. | 41 | 57 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1260 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 41 | 58 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0823 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 40 | 60 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS14380 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 62 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04045 | | Transcriptional regulatory protein ZraR | insig. | 43 | 57 |
| | Marinobacter adhaerens HP15 | HP15_328 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 43 | 57 |
| | Pseudomonas simiae WCS417 | PS417_12465 | | Fis family transcriptional regulator | insig. | 42 | 58 |
| | Marinobacter adhaerens HP15 | HP15_3793 | | protein containing RNA polymerase sigma factor 54, interaction / helix-turn-helix, Fis-type | insig. | 42 | 59 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS22295 | | nitrogen regulation protein NR(I) | strong | 41 | 58 |
| | Azospirillum sp. SherDot2 | MPMX19_05582 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 40 | 59 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2411 | | sigma54 specific transcriptional regulator, Fis family (RefSeq) | insig. | 40 | 61 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2220 | | Nitrogen regulation protein NR(I) | strong | 41 | 58 |
| | Azospirillum sp. SherDot2 | MPMX19_03461 | | Regulatory protein AtoC | insig. | 41 | 62 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS19345 | | sigma-54 dependent transcriptional regulator | no data | 38 | 70 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS01400 | | sigma-54-dependent Fis family transcriptional regulator | strong | 44 | 57 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS01400 | | sigma-54-dependent Fis family transcriptional regulator | strong | 44 | 57 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04184 | | DNA-binding transcriptional regulator NtrC | sig. | 40 | 58 |
| | Pseudomonas aeruginosa MRSN321 | PFGADD_03662 | dctD | C4-dicarboxylate transport transcriptional regulatory protein DctD | strong | 45 | 58 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_06350 | | Fis family transcriptional regulator | strong | 45 | 58 |
| | Pseudomonas aeruginosa PUPa3 | NPBIFN_03702 | dctD | C4-dicarboxylate transport transcriptional regulatory protein DctD | strong | 45 | 58 |
| | Methylophilus sp. DMC18 | GFF2024 | | DNA-binding transcriptional regulator NtrC | strong | 42 | 58 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS14390 | | ATPase AAA | strong | 41 | 56 |
| | Pseudomonas sp. S08-1 | OH686_00830 | | Transcriptional regulator | cofit | 40 | 59 |
| | Escherichia coli BL21 | ECD_03753 | | fused DNA-binding response regulator in two-component regulatory system with GlnL: response regulator/sigma54 interaction protein | insig. | 40 | 58 |
| | Escherichia coli ECOR27 | NOLOHH_06240 | glnG | nitrogen regulation protein NR(I) | insig. | 40 | 58 |
| | Escherichia coli ECRC100 | OKFHMN_14110 | glnG | nitrogen regulation protein NR(I) | insig. | 40 | 58 |
| | Escherichia coli ECRC101 | MCAODC_04610 | glnG | nitrogen regulation protein NR(I) | strong | 40 | 58 |
| | Escherichia coli ECRC102 | NIAGMN_11865 | glnG | nitrogen regulation protein NR(I) | insig. | 40 | 58 |
| | Escherichia coli ECRC62 | BNILDI_05290 | glnG | nitrogen regulation protein NR(I) | cofit | 40 | 58 |
| | Escherichia coli ECRC98 | JDDGAC_17735 | glnG | nitrogen regulation protein NR(I) | no data | 40 | 58 |
| | Escherichia coli ECRC99 | KEDOAH_14040 | glnG | nitrogen regulation protein NR(I) | no data | 40 | 58 |
| | Escherichia coli BW25113 | b3868 | glnG | fused DNA-binding response regulator in two-component regulatory system with GlnL: response regulator/sigma54 interaction protein (NCBI) | strong | 40 | 58 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_16520 | | DNA-binding response regulator | insig. | 39 | 58 |
| | Acinetobacter baumannii LAC-4 | RR41_RS12775 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 65 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0700 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 43 | 58 |
| | Dickeya dadantii 3937 | DDA3937_RS15640 | | two-component system response regulator GlrR | cofit | 42 | 59 |
| | Pseudomonas stutzeri RCH2 | Psest_0999 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 41 | 58 |
| | Pseudomonas protegens RBAN4 | FABNJH_01565 | dctD | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 49 | 47 |
| | Escherichia coli ECOR27 | NOLOHH_13500 | | Fis family transcriptional regulator | insig. | 45 | 56 |
| | Cellulophaga baltica 18 | M666_RS02825 | | sigma-54 dependent transcriptional regulator | strong | 40 | 58 |
| | Xanthobacter sp. DMC5 | GFF247 | | Acetoin dehydrogenase operon transcriptional activator AcoR | insig. | 43 | 59 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS13155 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 43 | 58 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS13155 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 43 | 58 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2153 | | PAS modulated sigma54 specific transcriptional regulator, Fis family (RefSeq) | insig. | 41 | 58 |
| | Pseudomonas simiae WCS417 | PS417_01305 | | Fis family transcriptional regulator | sig. | 50 | 45 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_2875 | | Sigma-54 dependent transcriptional regulator | strong | 42 | 59 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_08285 | glnG | nitrogen regulation protein NR(I) | cofit | 41 | 58 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS23710 | | response regulator GlrR | insig. | 44 | 59 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_11860 | | Fis family transcriptional regulator | strong | 44 | 59 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.252.1 | | Nitrogen regulation protein NtrC | strong | 42 | 58 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2039 | | Sigma-54 dependent transcriptional regulator | sig. | 42 | 59 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_10065 | | Fis family transcriptional regulator | strong | 42 | 61 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_04200 | | Sigma-54 interaction domain protein | insig. | 41 | 57 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2149 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 41 | 64 |
| | Erwinia tracheiphila SCR3 | LU632_RS22135 | glnG | nitrogen regulation protein NR(I) | strong | 41 | 58 |
| | Pseudomonas sp. BP01 | JOY50_RS27675 | | sigma-54 dependent transcriptional regulator | cofit | 41 | 60 |
| | Methylophilus sp. DMC18 | GFF2815 | | Regulatory protein AtoC | insig. | 40 | 57 |
| | Escherichia coli ECOR38 | HEPCGN_12740 | glnG | nitrogen regulation protein NR(I) | insig. | 40 | 58 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_09000 | | nitrogen regulation protein NR(I) | insig. | 40 | 58 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS37520 | | Fis family transcriptional regulator | sig. | 42 | 59 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2934 | ntrX | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 41 | 63 |