| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Variovorax sp. SCN45 | GFF2248 | | Transcriptional regulatory protein RtcR | insig. | 100 | 100 |
| o | Variovorax sp. OAS795 | ABID97_RS24145 | | RNA repair transcriptional activator RtcR | insig. | 88 | 99 |
| o | Acidovorax sp. GW101-3H11 | Ac3H11_1979 | | Transcriptional regulatory protein RtcR | insig. | 76 | 98 |
| o | Ralstonia solanacearum PSI07 | RPSI07_RS23050 | | sigma 54-dependent transcriptional regulator | insig. | 67 | 99 |
| o | Ralstonia solanacearum GMI1000 | RS_RS01100 | | sigma 54-dependent transcriptional regulator | insig. | 66 | 99 |
| o | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS10295 | | sigma 54-dependent transcriptional regulator | insig. | 66 | 99 |
| o | Ralstonia solanacearum UW163 | UW163_RS03285 | | sigma 54-dependent transcriptional regulator | insig. | 66 | 99 |
| o | Ralstonia sp. UNC404CL21Col | ABZR87_RS05930 | | RNA repair transcriptional activator RtcR | insig. | 64 | 99 |
| o | Pseudomonas aeruginosa PA14 | IKLFDK_00615 | | RNA repair transcriptional activator RtcR | insig. | 65 | 99 |
| o | Pseudomonas aeruginosa MRSN321 | DY961_RS23540 | rtcR;go_function=DNA-binding | RNA repair transcriptional activator RtcR | cofit | 65 | 99 |
| o | Pseudomonas aeruginosa PUPa3 | DQ20_RS56005 | rtcR;go_function=DNA-binding | RNA repair transcriptional activator RtcR | insig. | 65 | 99 |
| o | Pseudomonas sp. SVBP6 | COO64_RS15790 | rtcR | RNA repair transcriptional activator RtcR | cofit | 64 | 99 |
| o | Escherichia fergusonii Becca | EFB2_00407 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 62 | 98 |
| o | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF591 | | Transcriptional regulatory protein RtcR | insig. | 63 | 98 |
| o | Escherichia coli ECRC100 | OKFHMN_16945 | rtcR | DNA-binding transcriptional regulator RtcR | cofit | 62 | 99 |
| o | Escherichia coli ECRC101 | MCAODC_07475 | rtcR | DNA-binding transcriptional regulator RtcR | insig. | 62 | 99 |
| o | Escherichia coli ECRC102 | NIAGMN_14715 | rtcR | DNA-binding transcriptional regulator RtcR | insig. | 62 | 99 |
| o | Escherichia coli ECRC98 | JDDGAC_20575 | rtcR | DNA-binding transcriptional regulator RtcR | insig. | 62 | 99 |
| o | Escherichia coli ECRC99 | KEDOAH_11195 | rtcR | DNA-binding transcriptional regulator RtcR | no data | 62 | 99 |
| o | Escherichia coli ECRC62 | BNILDI_02775 | rtcR | DNA-binding transcriptional regulator RtcR | insig. | 62 | 99 |
| o | Escherichia coli Nissle 1917 | ECOLIN_RS19535 | | DNA-binding transcriptional regulator RtcR | insig. | 62 | 98 |
| o | Escherichia coli BW25113 | b3422 | rtcR | sigma 54-dependent transcriptional regulator of rtcBA expression (NCBI) | sig. | 62 | 99 |
| o | Escherichia coli BL21 | ECD_03273 | | sigma 54-dependent transcriptional regulator of rtcBA expression | insig. | 62 | 98 |
| o | Escherichia coli ECOR27 | NOLOHH_08740 | rtcR | DNA-binding transcriptional regulator RtcR | insig. | 62 | 99 |
| o | Escherichia coli ECOR38 | HEPCGN_15765 | rtcR | DNA-binding transcriptional regulator RtcR | insig. | 61 | 99 |
| o | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_00282 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 62 | 98 |
| o | Pseudomonas sp. DMC3 | GFF918 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 62 | 99 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02523 | | Anaerobic nitric oxide reductase transcription regulator NorR | cofit | 62 | 99 |
| o | Pectobacterium carotovorum WPP14 | HER17_RS19325 | | RNA repair transcriptional activator RtcR | cofit | 59 | 98 |
| o | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS08810 | | AAA family ATPase | no data | 58 | 99 |
| o | Klebsiella michiganensis M5al | BWI76_RS01770 | | transcriptional regulatory protein RtcR | insig. | 58 | 99 |
| o | Acinetobacter baumannii LAC-4 | RR41_RS06255 | | RNA repair transcriptional activator RtcR | insig. | 55 | 98 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS03700 | | sigma-54 dependent transcriptional regulator | insig. | 41 | 43 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2528 | | transcriptional regulator, NifA subfamily, Fis Family (RefSeq) | strong | 38 | 51 |
| | Marinobacter adhaerens HP15 | HP15_2011 | | two component, sigma54 specific, transcriptional regulator, Fis family | insig. | 38 | 48 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT0015 | | rteB, two-component system response regulator (NCBI ptt file) | insig. | 42 | 45 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0823 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 40 | 47 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS09115 | | sigma-54 dependent transcriptional regulator | insig. | 43 | 41 |
| | Pseudomonas orientalis W4I3 | QF045_RS08450 | | sigma-54 dependent transcriptional regulator | insig. | 37 | 57 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_00484 | | Sigma-54 interaction domain protein | insig. | 44 | 42 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS14390 | | ATPase AAA | strong | 41 | 42 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT2618 | | two-component system response regulator (NCBI ptt file) | insig. | 40 | 50 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVUA0143 | nifA-2 | nif-specific regulatory protein (TIGR) | strong | 39 | 42 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 37 | 50 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 37 | 50 |
| | Escherichia coli BW25113 | b2220 | atoC | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein (NCBI) | insig. | 37 | 50 |
| | Pseudomonas segetis P6 | ACVTMO_RS15595 | | sigma-54-dependent transcriptional regulator | strong | 41 | 44 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS30045 | | ATPase AAA | insig. | 41 | 42 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS10290 | | Fis family transcriptional regulator | no data | 38 | 53 |
| | Pseudomonas simiae WCS417 | PS417_05525 | | Fis family transcriptional regulator | strong | 38 | 49 |
| | Acinetobacter baumannii LAC-4 | RR41_RS17800 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 44 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_16225 | | Fis family transcriptional regulator | insig. | 36 | 50 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_01292 | | Regulatory protein AtoC | cofit | 38 | 49 |
| | Rhodopseudomonas palustris CGA009 | TX73_007055 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 37 | 51 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 37 | 50 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 37 | 50 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 37 | 50 |
| | Acinetobacter radioresistens SK82 | MPMX26_00162 | | Regulatory protein AtoC | cofit | 38 | 42 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS38320 | | sigma 54-interacting transcriptional regulator | insig. | 38 | 54 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 37 | 49 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 37 | 49 |
| | Pseudomonas sp. S08-1 | OH686_02845 | | Flagellar two-component response regulator FleR | strong | 40 | 44 |
| | Shewanella sp. ANA-3 | Shewana3_1338 | | sigma-54 dependent trancsriptional regulator (RefSeq) | strong | 38 | 43 |
| | Lysobacter sp. OAE881 | ABIE51_RS04850 | | sigma-54 dependent transcriptional regulator | strong | 38 | 50 |
| | Shewanella oneidensis MR-1 | SO3232 | flrA | flagellar regulatory protein A (NCBI ptt file) | strong | 38 | 43 |
| | Shewanella loihica PV-4 | Shew_1362 | | sigma-54 dependent trancsriptional regulator (RefSeq) | strong | 39 | 42 |
| | Serratia liquefaciens MT49 | IAI46_12570 | | formate hydrogenlyase transcriptional activator FlhA | insig. | 38 | 47 |
| | Shewanella sp. ANA-3 | Shewana3_1811 | | sigma-54 dependent trancsriptional regulator (RefSeq) | insig. | 30 | 72 |
| | Pseudomonas sp. SVBP6 | COO64_RS21290 | | sigma-54 dependent transcriptional regulator | insig. | 40 | 46 |
| | Rhodospirillum rubrum S1H | Rru_A1385 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | cofit | 37 | 50 |
| | Alteromonas macleodii MIT1002 | MIT1002_01326 | | Quorum-sensing regulator protein F | insig. | 36 | 49 |
| | Paraburkholderia graminis OAS925 | ABIE53_004894 | | DNA-binding NtrC family response regulator | strong | 38 | 49 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS21785 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 40 | 44 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS21785 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 40 | 44 |
| | Rahnella sp. WP5 | EX31_RS19870 | | formate hydrogenlyase transcriptional activator FlhA | insig. | 38 | 47 |
| | Cellulophaga baltica 18 | M666_RS19210 | | sigma-54 dependent transcriptional regulator | insig. | 37 | 43 |
| | Shewanella loihica PV-4 | Shew_2341 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | insig. | 36 | 45 |
| | Pseudomonas orientalis W4I3 | QF045_RS21945 | | sigma-54 dependent transcriptional regulator | insig. | 40 | 44 |
| | Bosea sp. OAE506 | ABIE41_RS06145 | | sigma-54 dependent transcriptional regulator | sig. | 41 | 46 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2536 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 37 | 52 |
| | Shewanella amazonensis SB2B | Sama_1549 | | response regulator receiver protein (RefSeq) | insig. | 39 | 45 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_3459 | | Helix-turn-helix, Fis-type | insig. | 41 | 44 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_3459 | | Helix-turn-helix, Fis-type | insig. | 41 | 44 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04161 | | Regulatory protein AtoC | cofit | 40 | 44 |
| | Rhodopseudomonas palustris CGA009 | TX73_024055 | | nif-specific transcriptional activator NifA | strong | 39 | 46 |
| | Caulobacter crescentus NA1000 | CCNA_03424 | | AAA-family response regulator tacA | strong | 39 | 41 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_03424 | | AAA-family response regulator tacA | cofit | 39 | 41 |
| | Shewanella amazonensis SB2B | Sama_2301 | | response regulator receiver protein (RefSeq) | strong | 39 | 42 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS02120 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 38 | 41 |
| | Rhodospirillum rubrum S1H | Rru_A1388 | | Transcriptional Regulator, NifA subfamily, Fis Family (NCBI) | cofit | 38 | 46 |
| | Alteromonas macleodii MIT1002 | MIT1002_01081 | | Nitrogen assimilation regulatory protein | cofit | 36 | 46 |
| | Marinobacter adhaerens HP15 | HP15_523 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 36 | 51 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2200 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 43 | 43 |
| | 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. | 40 | 42 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_01839 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 38 | 53 |
| | Variovorax sp. OAS795 | ABID97_RS06460 | | sigma 54-interacting transcriptional regulator | cofit | 38 | 47 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS17530 | | nif-specific transcriptional activator NifA | insig. | 43 | 42 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3023 | atoC | sigma-54 dependent DNA-binding response regulator (TIGR) | no data | 43 | 39 |
| | Pseudomonas sp. BP01 | JOY50_RS00695 | | sigma-54 dependent transcriptional regulator | insig. | 40 | 44 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4355 | | Flagellar regulatory protein FleQ | sig. | 40 | 44 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2595 | | Flagellar regulatory protein FleQ | sig. | 40 | 44 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS23710 | | response regulator GlrR | insig. | 38 | 47 |
| | Pseudomonas sp. DMC3 | GFF2447 | | Regulatory protein AtoC | cofit | 40 | 44 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3220 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 39 | 47 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT3801 | | rteB, two-component system response regulator (NCBI ptt file) | strong | 37 | 42 |
| | Pseudomonas simiae WCS417 | PS417_19815 | | Fis family transcriptional regulator | no data | 40 | 44 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_03845 | | Fis family transcriptional regulator | cofit | 41 | 44 |
| | Xanthobacter sp. DMC5 | GFF4834 | | Regulatory protein AtoC | insig. | 40 | 44 |
| | Klebsiella michiganensis M5al | BWI76_RS17490 | | Fis family transcriptional regulator | insig. | 39 | 43 |
| | Escherichia coli BL21 | ECD_02702 | | putative sigma-54-interacting transcriptional activator | insig. | 38 | 43 |
| | Escherichia fergusonii Becca | EFB2_01032 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 38 | 43 |
| | Escherichia coli ECOR27 | NOLOHH_11625 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 38 | 43 |
| | Escherichia coli ECOR38 | HEPCGN_18985 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 38 | 43 |
| | Escherichia coli ECRC100 | OKFHMN_19695 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | cofit | 38 | 43 |
| | Escherichia coli ECRC101 | MCAODC_10220 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 38 | 43 |
| | Escherichia coli ECRC102 | NIAGMN_17465 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 38 | 43 |
| | Escherichia coli ECRC62 | BNILDI_10150 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | cofit | 38 | 43 |
| | Escherichia coli ECRC98 | JDDGAC_23340 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 38 | 43 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_00846 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 38 | 43 |
| | Escherichia coli BW25113 | b2869 | ygeV | predicted DNA-binding transcriptional regulator (NCBI) | insig. | 38 | 43 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS02780 | | sigma-54-dependent Fis family transcriptional regulator | strong | 38 | 41 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_25140 | | transcriptional regulator | sig. | 37 | 49 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_717 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | strong | 37 | 49 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS42175 | | nif-specific transcriptional activator NifA | insig. | 42 | 41 |
| | Azospirillum brasilense Sp245 | AZOBR_RS29300 | | Fis family transcriptional regulator | insig. | 40 | 42 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS09765 | | sigma-54 dependent transcriptional regulator | insig. | 40 | 47 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS15995 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 38 | 43 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_18670 | | Fis family transcriptional regulator | strong | 39 | 44 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS19085 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 34 | 54 |
| | Enterobacter sp. TBS_079 | MPMX20_03616 | | Formate hydrogenlyase transcriptional activator | insig. | 32 | 61 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_03647 | | Sigma-54 interaction domain protein | cofit | 37 | 41 |
| | Pseudomonas putida KT2440 | PP_4371 | | two component system AtoC DNA-binding transcriptional activator | strong | 40 | 44 |
| | Rhodopseudomonas palustris CGA009 | TX73_007390 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 35 | 51 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1692 | | PAS modulated sigma54 specific transcriptional regulator, Fis family (RefSeq) | sig. | 40 | 46 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_1530 | | Flagellar regulatory protein FleQ | strong | 39 | 46 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF1930 | | Transcriptional regulatory protein zraR | insig. | 36 | 47 |
| | Cellulophaga baltica 18 | M666_RS12540 | | sigma 54-interacting response regulator | insig. | 36 | 42 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_0077 | | sigma54 specific transcriptional regulator, Fis family | insig. | 38 | 48 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0077 | | sigma54 specific transcriptional regulator, Fis family | insig. | 38 | 48 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS06965 | fleQ;inference=COORDINATES | transcriptional regulator FleQ | strong | 38 | 42 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_05045 | | transcriptional regulator FleQ | strong | 38 | 42 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS45870 | fleQ;inference=COORDINATES | transcriptional regulator FleQ | strong | 38 | 42 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS21795 | | sigma-54-dependent Fis family transcriptional regulator | strong | 38 | 42 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS21795 | | sigma-54-dependent Fis family transcriptional regulator | strong | 38 | 42 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04163 | | Anaerobic nitric oxide reductase transcription regulator NorR | strong | 38 | 42 |
| | Pseudomonas orientalis W4I3 | QF045_RS21955 | | sigma-54 dependent transcriptional regulator | cofit | 38 | 42 |
| | Pseudomonas simiae WCS417 | PS417_19825 | | ATPase AAA | strong | 38 | 42 |
| | Pseudomonas segetis P6 | ACVTMO_RS15605 | | sigma-54 dependent transcriptional regulator | strong | 38 | 42 |
| | Escherichia coli ECRC99 | KEDOAH_08435 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | no data | 38 | 43 |
| | Xanthobacter sp. DMC5 | GFF4584 | | Nif-specific regulatory protein | insig. | 38 | 46 |
| | Pseudomonas putida KT2440 | PP_4373 | | Transcriptional regulator FleQ | strong | 37 | 42 |
| | Klebsiella michiganensis M5al | BWI76_RS21250 | | two-component system response regulator GlrR | strong | 36 | 47 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_15905 | | transcriptional regulator | insig. | 36 | 53 |
| | Shewanella amazonensis SB2B | Sama_2299 | | response regulator receiver protein (RefSeq) | sig. | 35 | 57 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0653 | atoC | sigma-54 dependent transcriptional regulator, putative/response regulator (TIGR) | sig. | 42 | 39 |
| | Rhodospirillum rubrum S1H | Rru_A0993 | | Transcriptional Regulator, NifA, Fis Family (NCBI) | strong | 41 | 41 |
| | Dechlorosoma suillum PS | Dsui_3286 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 41 | 41 |
| | Bosea sp. OAE506 | ABIE41_RS10895 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 47 |
| | Pseudomonas sp. RS175 | PFR28_00828 | | Anaerobic nitric oxide reductase transcription regulator NorR | strong | 38 | 42 |
| | Pseudomonas sp. RS175 | PFR28_03751 | | Regulatory protein AtoC | insig. | 38 | 43 |
| | Pseudomonas sp. BP01 | JOY50_RS00705 | fleQ | transcriptional regulator FleQ | sig. | 37 | 42 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_0196 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 37 | 43 |
| | Pseudomonas sp. RS175 | PFR28_02218 | | Nitric oxide reductase transcription regulator NorR2 | sig. | 37 | 49 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS14835 | | two-component system response regulator GlrR | cofit | 36 | 48 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_2822 | | Transcriptional regulator containing GAF, AAA-type ATPase, and DNA binding domains | insig. | 33 | 61 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3142 | | sigma-54 dependent transcriptional regulator (TIGR) | sig. | 43 | 42 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2843 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | cofit | 39 | 43 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_02735 | | Fis family transcriptional regulator | cofit | 39 | 42 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.1353.1 | | Type IV fimbriae expression regulatory protein PilR | sig. | 38 | 49 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_3461 | | Helix-turn-helix, Fis-type | strong | 38 | 42 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_3461 | | Helix-turn-helix, Fis-type | cofit | 38 | 42 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0700 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 37 | 45 |
| | Variovorax sp. SCN45 | GFF7323 | | Transcriptional response regulatory protein GlrR | insig. | 37 | 47 |
| | Pseudomonas stutzeri RCH2 | Psest_1765 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 37 | 43 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1859 | | putative two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 36 | 53 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_17035 | | Fis family transcriptional regulator | insig. | 36 | 55 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS00090 | | sigma-54 dependent transcriptional regulator | cofit | 35 | 46 |
| | Escherichia fergusonii Becca | EFB2_01342 | | Transcriptional regulatory protein QseF | insig. | 35 | 47 |
| | Escherichia coli ECOR27 | NOLOHH_13170 | qseF | two-component system response regulator QseF/GlrR | strong | 35 | 47 |
| | Escherichia coli ECOR38 | HEPCGN_20640 | qseF | two-component system response regulator QseF/GlrR | strong | 35 | 47 |
| | Escherichia coli ECRC62 | BNILDI_11970 | qseF | two-component system response regulator QseF/GlrR | strong | 35 | 47 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01153 | | Transcriptional regulatory protein GlrR | insig. | 35 | 47 |
| | Klebsiella michiganensis M5al | BWI76_RS26560 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 33 | 52 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS05020 | | sigma-54 dependent transcriptional regulator | strong | 33 | 61 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS07540 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 42 |
| | Klebsiella michiganensis M5al | BWI76_RS01605 | | transcriptional regulatory protein ZraR | insig. | 38 | 48 |
| | Pseudomonas sp. SVBP6 | COO64_RS21300 | fleQ | transcriptional regulator FleQ | cofit | 38 | 42 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS14380 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 41 |
| | Klebsiella michiganensis M5al | BWI76_RS22370 | | transcriptional regulator FhlA | insig. | 36 | 50 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4188 | | Response regulator of zinc sigma-54-dependent two-component system | insig. | 34 | 57 |
| | Azospirillum sp. SherDot2 | MPMX19_05290 | | Hydrogenase transcriptional regulatory protein hupR1 | insig. | 33 | 61 |
| | Pseudomonas sp. RS175 | PFR28_00830 | | Regulatory protein AtoC | cofit | 39 | 44 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5122 | | Type IV fimbriae expression regulatory protein PilR | insig. | 39 | 43 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_03855 | | AAA family ATPase | strong | 38 | 42 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2597 | | Flagellar regulatory protein FleQ | strong | 38 | 42 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4357 | | Flagellar regulatory protein FleQ | insig. | 38 | 42 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2455 | | Putative sensory histidine kinase YfhA | strong | 35 | 47 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_1524 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 38 | 44 |
| | Escherichia coli ECRC62 | BNILDI_06055 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 50 |
| | Escherichia coli ECOR38 | HEPCGN_11960 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 50 |
| | Escherichia fergusonii Becca | EFB2_01192 | | Formate hydrogenlyase transcriptional activator FhlA | cofit | 36 | 46 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS15260 | | formate hydrogenlyase transcriptional activator FlhA | insig. | 36 | 46 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.2800.1 | | Flagellar regulatory protein FleQ | sig. | 35 | 49 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS05900 | | nitric oxide reductase transcriptional regulator NorR | cofit | 34 | 63 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS14455 | | two-component system response regulator GlrR | strong | 34 | 47 |
| | Methylophilus sp. DMC18 | GFF1426 | | Transcriptional regulatory protein ZraR | insig. | 41 | 41 |
| | Pseudomonas sp. RS175 | PFR28_03718 | | Transcriptional regulatory protein ZraR | strong | 38 | 44 |
| | Pseudomonas sp. DMC3 | GFF2445 | | Anaerobic nitric oxide reductase transcription regulator NorR | cofit | 38 | 42 |
| | Shewanella loihica PV-4 | Shew_3682 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | strong | 40 | 42 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_3599 | | Flagellar regulatory protein FleQ | insig. | 38 | 42 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_18660 | | AAA family ATPase | strong | 38 | 42 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4725 | | Formate hydrogenlyase transcriptional activator | insig. | 37 | 46 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS07835 | | sigma-54-dependent Fis family transcriptional regulator | strong | 35 | 46 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_10660 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 33 | 45 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2149 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 39 | 45 |
| | Sinorhizobium meliloti 1021 | SMc04011 | | sigma-54-dependent transcription regulator protein | insig. | 37 | 44 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 50 |
| | Escherichia coli BL21 | ECD_02446 | | response regulator regulating glmY sRNA in two-component system with sensor protein GlrK | sig. | 34 | 47 |
| | Escherichia coli ECRC100 | OKFHMN_21495 | qseF | two-component system response regulator QseF/GlrR | cofit | 34 | 47 |
| | Escherichia coli ECRC101 | MCAODC_12025 | qseF | two-component system response regulator QseF/GlrR | cofit | 34 | 47 |
| | Escherichia coli ECRC102 | NIAGMN_19265 | qseF | two-component system response regulator QseF/GlrR | cofit | 34 | 47 |
| | Escherichia coli ECRC98 | JDDGAC_25160 | qseF | two-component system response regulator QseF/GlrR | cofit | 34 | 47 |
| | Escherichia coli ECRC99 | KEDOAH_06725 | qseF | two-component system response regulator QseF/GlrR | no data | 34 | 47 |
| | Escherichia coli BW25113 | b2554 | yfhA | predicted DNA-binding response regulator in two-component system (NCBI) | sig. | 34 | 47 |
| | Azospirillum sp. SherDot2 | MPMX19_03494 | | Regulatory protein AtoC | insig. | 43 | 39 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVUA0057 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | insig. | 38 | 46 |
| | Pseudomonas sp. DMC3 | GFF4030 | | Transcriptional regulatory protein ZraR | strong | 38 | 44 |
| | Pseudomonas putida KT2440 | PP_4696 | | Nitrogen regulation protein NR(I) | strong | 38 | 44 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_10090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 46 |
| | Escherichia coli BL21 | ECD_02581 | | formate hydrogenlyase transcriptional activator | insig. | 36 | 46 |
| | Escherichia coli ECOR27 | NOLOHH_12385 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 36 | 46 |
| | Escherichia coli ECRC100 | OKFHMN_20540 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 36 | 46 |
| | Escherichia coli ECRC101 | MCAODC_11065 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 36 | 46 |
| | Escherichia coli ECRC102 | NIAGMN_18310 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 36 | 46 |
| | Escherichia coli ECRC62 | BNILDI_10935 | flhA | formate hydrogenlyase transcriptional activator FlhA | cofit | 36 | 46 |
| | Escherichia coli ECRC98 | JDDGAC_24205 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 36 | 46 |
| | Escherichia coli ECRC99 | KEDOAH_07595 | flhA | formate hydrogenlyase transcriptional activator FlhA | no data | 36 | 46 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01003 | | Formate hydrogenlyase transcriptional activator FhlA | insig. | 36 | 46 |
| | Escherichia coli BW25113 | b2731 | fhlA | DNA-binding transcriptional activator (NCBI) | insig. | 36 | 46 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS23515 | | sigma-54 dependent transcriptional regulator | strong | 36 | 46 |
| | Pseudomonas sp. SVBP6 | COO64_RS20835 | | sigma 54-interacting transcriptional regulator | insig. | 36 | 47 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS23315 | | sigma-54-dependent Fis family transcriptional regulator | strong | 35 | 46 |
| | Ralstonia solanacearum GMI1000 | RS_RS25105 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 35 | 46 |
| | Ralstonia solanacearum UW163 | UW163_RS16565 | | sigma-54-dependent Fis family transcriptional regulator | strong | 35 | 46 |
| | Pectobacterium carotovorum WPP14 | HER17_RS04890 | | sigma-54 dependent transcriptional regulator | insig. | 31 | 60 |
| | Escherichia coli ECOR27 | NOLOHH_05465 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 50 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1933 | | PAS modulated sigma54 specific transcriptional regulator, Fis family (RefSeq) | insig. | 36 | 50 |
| | Paraburkholderia graminis OAS925 | ABIE53_005506 | | transcriptional regulator of acetoin/glycerol metabolism | strong | 38 | 54 |
| | Dechlorosoma suillum PS | Dsui_2360 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 38 | 45 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_14400 | | Fis family transcriptional regulator | strong | 37 | 44 |