| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_14600 | | AAA family ATPase | insig. | 100 | 100 |
| o | Marinobacter adhaerens HP15 | HP15_3466 | | two component, sigma54 specific, transcriptional regulator, Fis family | insig. | 45 | 91 |
| o | Dickeya dadantii 3937 | DDA3937_RS07065 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 41 | 93 |
| o | Pectobacterium carotovorum WPP14 | HER17_RS04890 | | sigma-54 dependent transcriptional regulator | insig. | 41 | 96 |
| o | Dickeya dianthicola ME23 | DZA65_RS08590 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 40 | 100 |
| o | Dickeya dianthicola 67-19 | HGI48_RS07995 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 41 | 93 |
| | Pseudomonas orientalis W4I3 | QF045_RS08450 | | sigma-54 dependent transcriptional regulator | insig. | 41 | 67 |
| | Pseudomonas simiae WCS417 | PS417_05525 | | Fis family transcriptional regulator | strong | 40 | 67 |
| | Pseudomonas segetis P6 | MPMX49_00138 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 40 | 78 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_01292 | | Regulatory protein AtoC | cofit | 40 | 67 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 40 | 67 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 40 | 67 |
| | Acinetobacter baumannii LAC-4 | RR41_RS17800 | | sigma-54 dependent transcriptional regulator | insig. | 41 | 67 |
| | Klebsiella michiganensis M5al | BWI76_RS17490 | | Fis family transcriptional regulator | insig. | 45 | 63 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_4304 | | Sigma-54 dependent transcriptional regulator | insig. | 42 | 65 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_16225 | | Fis family transcriptional regulator | insig. | 40 | 63 |
| | Pseudomonas sp. DMC3 | GFF451 | | Anaerobic nitric oxide reductase transcription regulator NorR | cofit | 42 | 66 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_12160 | | Fis family transcriptional regulator | insig. | 42 | 66 |
| | Escherichia coli ECOR27 | NOLOHH_11625 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 43 | 63 |
| | Escherichia coli ECRC62 | BNILDI_10150 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | cofit | 43 | 63 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_00846 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 43 | 63 |
| | Escherichia fergusonii Becca | EFB2_01032 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 43 | 63 |
| | Escherichia coli ECOR38 | HEPCGN_18985 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 43 | 63 |
| | Escherichia coli ECRC100 | OKFHMN_19695 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | cofit | 43 | 63 |
| | Escherichia coli ECRC101 | MCAODC_10220 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 43 | 63 |
| | Escherichia coli ECRC102 | NIAGMN_17465 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 43 | 63 |
| | Escherichia coli ECRC98 | JDDGAC_23340 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | insig. | 43 | 63 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS15995 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 43 | 63 |
| | Escherichia coli BW25113 | b2869 | ygeV | predicted DNA-binding transcriptional regulator (NCBI) | insig. | 43 | 63 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_09410 | | Fis family transcriptional regulator | insig. | 42 | 65 |
| | Escherichia coli BL21 | ECD_02702 | | putative sigma-54-interacting transcriptional activator | insig. | 43 | 63 |
| | Pseudomonas stutzeri RCH2 | Psest_0124 | | Transcriptional regulator containing GAF, AAA-type ATPase, and DNA binding domains | sig. | 43 | 63 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_08010 | | transcriptional regulator | sig. | 43 | 63 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS54075 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 43 | 63 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS19980 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 43 | 63 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2089 | | Sigma-54 dependent transcriptional regulator | insig. | 43 | 63 |
| | Rhodospirillum rubrum S1H | Rru_A1385 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | cofit | 37 | 77 |
| | Pseudomonas sp. S08-1 | OH686_12810 | | T6SS sigma-54-dependent regulator VasH | insig. | 43 | 63 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS32695 | | Fis family transcriptional regulator | insig. | 40 | 62 |
| | Xanthobacter sp. DMC5 | GFF4834 | | Regulatory protein AtoC | insig. | 42 | 64 |
| | Escherichia coli ECRC99 | KEDOAH_08435 | uacR | Putative uric acid sigma-54-dependent transcriptional regulator UacR | no data | 43 | 63 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 40 | 68 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 40 | 68 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 40 | 68 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 40 | 68 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 40 | 68 |
| | Escherichia coli BW25113 | b2220 | atoC | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein (NCBI) | insig. | 40 | 68 |
| | Acinetobacter radioresistens SK82 | MPMX26_00162 | | Regulatory protein AtoC | cofit | 40 | 66 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4188 | | Response regulator of zinc sigma-54-dependent two-component system | insig. | 40 | 67 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1260 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 41 | 67 |
| | 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. | 43 | 63 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_14200 | | transcriptional regulator | insig. | 41 | 64 |
| | Pseudomonas simiae WCS417 | PS417_15295 | | Fis family transcriptional regulator | insig. | 42 | 63 |
| | Methylophilus sp. DMC18 | GFF1426 | | Transcriptional regulatory protein ZraR | insig. | 41 | 63 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_09510 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 49 | 43 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2748 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 46 | 52 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS30045 | | ATPase AAA | insig. | 43 | 63 |
| | Rahnella sp. WP5 | EX31_RS20615 | | two-component system response regulator GlrR | insig. | 41 | 66 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_13865 | | nitrogen regulation protein NR(I) | insig. | 39 | 66 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS01750 | | sigma-54 dependent transcriptional regulator | strong | 38 | 66 |
| | Escherichia coli ECOR27 | NOLOHH_05465 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 40 | 62 |
| | Pantoea sp. MT58 | IAI47_04945 | | two-component system response regulator GlrR | sig. | 40 | 66 |
| | Escherichia coli ECOR38 | HEPCGN_11960 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 40 | 62 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 40 | 62 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04045 | | Transcriptional regulatory protein ZraR | insig. | 40 | 62 |
| | Pseudomonas sp. S08-1 | OH686_02855 | | Flagellar regulatory protein FleQ | cofit | 39 | 68 |
| | Shewanella amazonensis SB2B | Sama_2301 | | response regulator receiver protein (RefSeq) | strong | 41 | 63 |
| | Rhodopseudomonas palustris CGA009 | TX73_024055 | | nif-specific transcriptional activator NifA | strong | 37 | 79 |
| | Alteromonas macleodii MIT1002 | MIT1002_03851 | | Transcriptional regulatory protein ZraR | insig. | 50 | 43 |
| | Klebsiella michiganensis M5al | BWI76_RS21250 | | two-component system response regulator GlrR | sig. | 44 | 47 |
| | Pseudomonas sp. SVBP6 | COO64_RS21300 | fleQ | transcriptional regulator FleQ | cofit | 40 | 68 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2455 | | Putative sensory histidine kinase YfhA | strong | 39 | 66 |
| | Escherichia fergusonii Becca | EFB2_04606 | | Transcriptional regulatory protein ZraR | insig. | 38 | 67 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS14835 | | two-component system response regulator GlrR | cofit | 42 | 62 |
| | Escherichia coli BL21 | ECD_03881 | | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein | insig. | 40 | 62 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS05020 | | sigma-54 dependent transcriptional regulator | strong | 39 | 64 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS23170 | | ATPase AAA | insig. | 42 | 63 |
| | Escherichia coli BW25113 | b4004 | zraR | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein (NCBI) | insig. | 40 | 62 |
| | Marinobacter adhaerens HP15 | HP15_2330 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 39 | 65 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS04800 | | sigma-54 dependent transcriptional regulator | cofit | 39 | 64 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS03885 | norR;go_function=DNA-binding | nitric oxide reductase transcriptional regulator NorR | insig. | 39 | 74 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_13385 | | nitric oxide reductase transcriptional regulator NorR | sig. | 39 | 74 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS34920 | norR;go_function=DNA-binding | nitric oxide reductase transcriptional regulator NorR | insig. | 39 | 74 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_10090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 39 | 67 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_10670 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 38 | 65 |
| | Dechlorosoma suillum PS | Dsui_2360 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 51 | 43 |
| | Serratia liquefaciens MT49 | IAI46_19460 | | two-component system response regulator GlrR | sig. | 41 | 66 |
| | Azospirillum sp. SherDot2 | MPMX19_01112 | | DNA-binding transcriptional regulator NtrC | no data | 41 | 63 |
| | Pseudomonas sp. BP01 | JOY50_RS00705 | fleQ | transcriptional regulator FleQ | sig. | 40 | 68 |
| | Pseudomonas putida KT2440 | PP_4373 | | Transcriptional regulator FleQ | strong | 40 | 68 |
| | Escherichia coli ECRC62 | BNILDI_06055 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 40 | 62 |
| | Escherichia coli ECRC100 | OKFHMN_13320 | zraR | sigma-54-dependent response regulator transcription factor ZraR | cofit | 39 | 62 |
| | Escherichia coli ECRC101 | MCAODC_03820 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 39 | 62 |
| | Escherichia coli ECRC102 | NIAGMN_11070 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 39 | 62 |
| | Escherichia coli ECRC99 | KEDOAH_14840 | zraR | sigma-54-dependent response regulator transcription factor ZraR | no data | 39 | 62 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4939 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 39 | 66 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_03855 | | AAA family ATPase | strong | 37 | 79 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2597 | | Flagellar regulatory protein FleQ | strong | 37 | 79 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS14455 | | two-component system response regulator GlrR | strong | 45 | 47 |
| | Azospirillum brasilense Sp245 | AZOBR_RS14430 | | chemotaxis protein CheY | strong | 41 | 63 |