| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Pseudomonas putida KT2440 | PP_0807 | | DNA-binding transcriptional dual regulator (NO) | insig. | 100 | 100 |
| o | Pseudomonas sp. BP01 | JOY50_RS23015 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 96 | 100 |
| o | Pseudomonas sp. SVBP6 | COO64_RS11340 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 82 | 100 |
| o | Pseudomonas fluorescens FW300-N2E3 | AO353_15435 | | transcriptional regulator | insig. | 79 | 100 |
| o | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4939 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 78 | 100 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04828 | | Nitric oxide reductase transcription regulator NorR2 | cofit | 79 | 100 |
| o | Pseudomonas fluorescens SBW25 | PFLU_RS25235 | | nitric oxide reductase transcriptional regulator NorR | insig. | 78 | 100 |
| o | Pseudomonas fluorescens SBW25-INTG | PFLU_RS25235 | | nitric oxide reductase transcriptional regulator NorR | insig. | 78 | 100 |
| o | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_926 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 79 | 100 |
| o | Pseudomonas sp. DMC3 | GFF4398 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 76 | 100 |
| o | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5314 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 77 | 100 |
| o | Pseudomonas simiae WCS417 | PS417_23405 | | transcriptional regulator | insig. | 77 | 100 |
| o | Pseudomonas sp. RS175 | PFR28_00239 | | Nitric oxide reductase transcription regulator NorR2 | insig. | 77 | 100 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_16945 | | transcriptional regulator | insig. | 77 | 100 |
| o | Pseudomonas aeruginosa PA14 | IKLFDK_13385 | | nitric oxide reductase transcriptional regulator NorR | insig. | 73 | 100 |
| o | Paraburkholderia sabiae LMG 24235 | QEN71_RS15700 | | nitric oxide reductase transcriptional regulator NorR | insig. | 68 | 100 |
| o | Herbaspirillum seropedicae SmR1 | HSERO_RS12530 | | transcriptional regulator | insig. | 68 | 100 |
| o | Pseudomonas sp. S08-1 | OH686_12120 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 70 | 100 |
| o | Burkholderia phytofirmans PsJN | BPHYT_RS30560 | | transcriptional regulator | insig. | 69 | 100 |
| o | Pseudomonas segetis P6 | MPMX49_01763 | | Nitric oxide reductase transcription regulator NorR2 | insig. | 67 | 100 |
| o | Variovorax sp. OAS795 | ABID97_RS27095 | | nitric oxide reductase transcriptional regulator NorR | no data | 56 | 96 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF5813 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | no data | 56 | 96 |
| o | Azospirillum sp. SherDot2 | MPMX19_06071 | | Nitric oxide reductase transcription regulator NorR2 | insig. | 57 | 94 |
| o | Acidovorax sp. GW101-3H11 | Ac3H11_3315 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 55 | 98 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF4519 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 55 | 96 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_25140 | | transcriptional regulator | sig. | 53 | 98 |
| | Pseudomonas sp. RS175 | PFR28_02218 | | Nitric oxide reductase transcription regulator NorR2 | sig. | 52 | 98 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_717 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | strong | 52 | 98 |
| o | Shewanella loihica PV-4 | Shew_0656 | | anaerobic nitric oxide reductase transcription regulator (RefSeq) | insig. | 48 | 99 |
| o | Cupriavidus basilensis FW507-4G11 | RR42_RS08835 | | transcriptional regulator | insig. | 55 | 98 |
| o | Pectobacterium carotovorum WPP14 | HER17_RS17125 | | nitric oxide reductase transcriptional regulator NorR | insig. | 51 | 99 |
| o | Dickeya dianthicola ME23 | DZA65_RS04415 | | nitric oxide reductase transcriptional regulator NorR | insig. | 51 | 97 |
| o | Pseudomonas stutzeri RCH2 | Psest_0833 | | Transcriptional regulator containing GAF, AAA-type ATPase, and DNA binding domains | sig. | 52 | 98 |
| o | Shewanella sp. ANA-3 | Shewana3_0845 | | anaerobic nitric oxide reductase transcription regulator (RefSeq) | insig. | 49 | 99 |
| o | Dickeya dadantii 3937 | DDA3937_RS04535 | | nitric oxide reductase transcriptional regulator NorR | insig. | 51 | 97 |
| o | Ralstonia solanacearum GMI1000 | RS_RS21740 | | nitric oxide reductase transcriptional regulator NorR | insig. | 56 | 96 |
| o | Dickeya dianthicola 67-19 | HGI48_RS04495 | | nitric oxide reductase transcriptional regulator NorR | insig. | 51 | 97 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_5751 | | Functional role page for Anaerobic nitric oxide reductase transcription regulator NorR | cofit | 52 | 98 |
| | Pseudomonas sp. SVBP6 | COO64_RS14170 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 52 | 98 |
| o | Vibrio cholerae E7946 ATCC 55056 | CSW01_14900 | | regulatory protein LuxO | insig. | 49 | 99 |
| o | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4703 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 50 | 97 |
| o | Castellaniella sp019104865 MT123 | ABCV34_RS05900 | | nitric oxide reductase transcriptional regulator NorR | cofit | 51 | 98 |
| o | Klebsiella michiganensis M5al | BWI76_RS22250 | | nitric oxide reductase transcription regulator | insig. | 50 | 99 |
| o | Alteromonas macleodii MIT1002 | MIT1002_03245 | | Regulatory protein LuxO | insig. | 48 | 98 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_22030 | | transcriptional regulator | insig. | 52 | 98 |
| o | Enterobacter asburiae PDN3 | EX28DRAFT_2798 | | Transcriptional regulator containing GAF, AAA-type ATPase, and DNA binding domains | insig. | 49 | 98 |
| o | Escherichia fergusonii Becca | EFB2_01215 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 51 | 98 |
| o | Escherichia coli ECOR38 | HEPCGN_19850 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 50 | 98 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS15110 | | nitric oxide reductase transcriptional regulator NorR | no data | 50 | 98 |
| o | Escherichia coli Nissle 1917 | ECOLIN_RS26155 | | nitric oxide reductase transcriptional regulator NorR | no data | 50 | 98 |
| o | Escherichia coli ECOR27 | NOLOHH_12495 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 50 | 98 |
| o | Shewanella amazonensis SB2B | Sama_0727 | | anaerobic nitric oxide reductase transcription regulator (RefSeq) | insig. | 49 | 99 |
| o | Enterobacter sp. TBS_079 | MPMX20_03593 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 50 | 98 |
| o | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01025 | | Anaerobic nitric oxide reductase transcription regulator NorR | insig. | 50 | 98 |
| o | Escherichia coli ECRC100 | OKFHMN_20650 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 50 | 98 |
| o | Escherichia coli ECRC101 | MCAODC_11175 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 50 | 98 |
| o | Escherichia coli ECRC102 | NIAGMN_18420 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 50 | 98 |
| o | Escherichia coli ECRC98 | JDDGAC_24315 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 50 | 98 |
| o | Escherichia coli ECRC99 | KEDOAH_07485 | norR | nitric oxide reductase transcriptional regulator NorR | no data | 50 | 98 |
| o | Escherichia coli BL21 | ECD_02559 | | anaerobic nitric oxide reductase DNA-binding transcriptional activator | cofit | 50 | 98 |
| o | Escherichia coli BW25113 | b2709 | ygaA | putative 2-component transcriptional regulator (VIMSS) | insig. | 50 | 98 |
| o | Escherichia coli ECRC62 | BNILDI_11055 | norR | nitric oxide reductase transcriptional regulator NorR | insig. | 50 | 98 |
| o | Klebsiella pneumoniae MKP103 | KDGMDA_02920 | | nitric oxide reductase transcriptional regulator NorR | sig. | 50 | 97 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2601 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 43 | 69 |
| | Pseudomonas sp. S08-1 | OH686_17260 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 48 | 64 |
| | Rhodopseudomonas palustris CGA009 | TX73_007055 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 41 | 72 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2149 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 46 | 69 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_3010 | | sigma54 specific transcriptional regulator, Fis family (RefSeq) | strong | 53 | 53 |
| | Azospirillum brasilense Sp245 | AZOBR_RS29300 | | Fis family transcriptional regulator | insig. | 42 | 73 |
| | Rhodospirillum rubrum S1H | Rru_A1388 | | Transcriptional Regulator, NifA subfamily, Fis Family (NCBI) | cofit | 42 | 73 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2359 | | sigma-54 dependent transcriptional regulator (TIGR) | insig. | 47 | 59 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_0831 | | Two-component response regulator CbrB | sig. | 46 | 63 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0831 | | Two-component response regulator CbrB | no data | 46 | 63 |
| | Pseudomonas segetis P6 | MPMX49_01224 | | Transcriptional regulatory protein ZraR | no data | 45 | 63 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS32695 | | Fis family transcriptional regulator | insig. | 45 | 68 |
| | Rhodopseudomonas palustris CGA009 | TX73_010880 | | sigma 54-interacting transcriptional regulator | insig. | 57 | 45 |
| | Pseudomonas stutzeri RCH2 | Psest_0999 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 45 | 64 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF1930 | | Transcriptional regulatory protein zraR | insig. | 47 | 63 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_29980 | | two-component system response regulator CbrB | strong | 47 | 63 |
| | Escherichia coli BL21 | ECD_03881 | | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein | insig. | 45 | 62 |
| | Escherichia fergusonii Becca | EFB2_04606 | | Transcriptional regulatory protein ZraR | insig. | 45 | 62 |
| | Escherichia coli ECOR27 | NOLOHH_12385 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 41 | 77 |
| | Escherichia coli ECRC62 | BNILDI_10935 | flhA | formate hydrogenlyase transcriptional activator FlhA | cofit | 41 | 77 |
| | Escherichia coli BW25113 | b4004 | zraR | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein (NCBI) | insig. | 45 | 62 |
| | Pseudomonas sp. DMC3 | GFF4030 | | Transcriptional regulatory protein ZraR | strong | 43 | 63 |
| | Escherichia fergusonii Becca | EFB2_01192 | | Formate hydrogenlyase transcriptional activator FhlA | cofit | 41 | 77 |
| | Escherichia coli ECRC100 | OKFHMN_20540 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 41 | 77 |
| | Escherichia coli ECRC101 | MCAODC_11065 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 41 | 77 |
| | Escherichia coli ECRC102 | NIAGMN_18310 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 41 | 77 |
| | Escherichia coli ECRC98 | JDDGAC_24205 | flhA | formate hydrogenlyase transcriptional activator FlhA | insig. | 41 | 77 |
| | Escherichia coli ECRC99 | KEDOAH_07595 | flhA | formate hydrogenlyase transcriptional activator FlhA | no data | 41 | 77 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS15260 | | formate hydrogenlyase transcriptional activator FlhA | insig. | 41 | 77 |
| | Marinobacter adhaerens HP15 | HP15_1011 | | two component, sigma54 specific, transcriptional regulator, Fis family | insig. | 47 | 57 |
| | Pseudomonas sp. BP01 | JOY50_RS27675 | | sigma-54 dependent transcriptional regulator | cofit | 45 | 63 |
| | Escherichia coli ECRC62 | BNILDI_06055 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 45 | 62 |
| | Bosea sp. OAE506 | ABIE41_RS06250 | | sigma 54-interacting transcriptional regulator | insig. | 56 | 45 |
| | Pseudomonas sp. SVBP6 | COO64_RS15090 | | sigma-54 dependent transcriptional regulator | strong | 44 | 63 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 45 | 62 |
| | Escherichia coli BL21 | ECD_02581 | | formate hydrogenlyase transcriptional activator | insig. | 41 | 77 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01003 | | Formate hydrogenlyase transcriptional activator FhlA | insig. | 41 | 77 |