| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| o | Pseudomonas fluorescens SBW25 | PFLU_RS17740 | | Rrf2 family transcriptional regulator | insig. | 100 | 100 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS17740 | | Rrf2 family transcriptional regulator | sig. | 100 | 100 |
| o | Pseudomonas simiae WCS417 | PS417_15935 | | Rrf2 family transcriptional regulator | insig. | 95 | 100 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02679 | | Putative HTH-type transcriptional regulator YwnA | insig. | 92 | 100 |
| o | Pseudomonas sp. RS175 | PFR28_01824 | | hypothetical protein | no data | 81 | 97 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_28000 | | Rrf2 family transcriptional regulator | insig. | 81 | 97 |
| o | Pseudomonas aeruginosa PA14 | IKLFDK_21495 | | Helix-turn-helix domain-containing protein | strong | 78 | 97 |
| o | Pseudomonas aeruginosa MRSN321 | DY961_RS28330 | | Rrf2 family transcriptional regulator | sig. | 77 | 97 |
| o | Pseudomonas aeruginosa PUPa3 | DQ20_RS49175 | | Rrf2 family transcriptional regulator | insig. | 77 | 97 |
| o | Rhizobium sp. OAE497 | ABIE40_RS19730 | | Rrf2 family transcriptional regulator | insig. | 68 | 96 |
| o | Agrobacterium fabrum C58 | Atu0237 | | hypothetical protein | sig. | 63 | 96 |
| o | Azospirillum sp. SherDot2 | MPMX19_01756 | | Putative HTH-type transcriptional regulator YwnA | no data | 65 | 97 |
| o | Sphingobium sp. HT1-2 | GFF4784 | | Rrf2 family transcriptional regulator, group III | insig. | 61 | 96 |
| o | Shewanella sp. ANA-3 | Shewana3_2538 | | BadM/Rrf2 family transcriptional regulator (RefSeq) | no data | 57 | 91 |
| o | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1404 | | transcriptional regulator, BadM/Rrf2 family | sig. | 57 | 95 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.787.1 | | Rrf2 family transcriptional regulator, group III | insig. | 60 | 98 |
| o | Azospirillum brasilense Sp245 | AZOBR_RS20850 | | transcriptional regulator | insig. | 58 | 95 |
| o | Rhodanobacter denitrificans MT42 | LRK55_RS08890 | | Rrf2 family transcriptional regulator | insig. | 53 | 96 |
| o | Sinorhizobium meliloti 1021 | SMc01160 | | hypothetical protein | insig. | 54 | 97 |
| o | Variovorax sp. SCN45 | GFF3412 | | Rrf2 family transcriptional regulator, group III | no data | 51 | 95 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF229 | | Rrf2 family transcriptional regulator, group III | insig. | 55 | 96 |
| o | Xanthobacter sp. DMC5 | GFF2582 | | Putative HTH-type transcriptional regulator YwnA | no data | 51 | 94 |
| | Rhizobium sp. OAE497 | ABIE40_RS04855 | | Rrf2 family transcriptional regulator | insig. | 54 | 92 |
| | Agrobacterium fabrum C58 | Atu1813 | | hypothetical protein | no data | 53 | 92 |
| | Agrobacterium fabrum C58 | Atu3663 | | hypothetical protein | insig. | 53 | 92 |
| o | Herbaspirillum seropedicae SmR1 | HSERO_RS17500 | | transcriptional regulator | insig. | 48 | 100 |
| o | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS13615 | | Rrf2 family transcriptional regulator | insig. | 49 | 95 |
| o | Dinoroseobacter shibae DFL-12 | Dshi_2591 | | transcriptional regulator, BadM/Rrf2 family (RefSeq) | strong | 41 | 90 |
| | Variovorax sp. SCN45 | GFF799 | | Rrf2 family transcriptional regulator, group III | insig. | 40 | 92 |
| o | Ralstonia solanacearum PSI07 | RPSI07_RS02020 | | Rrf2 family transcriptional regulator | no data | 33 | 97 |
| o | Cupriavidus basilensis FW507-4G11 | RR42_RS13075 | | Rrf2 family transcriptional regulator | no data | 33 | 97 |
| o | Ralstonia solanacearum GMI1000 | RS_RS19690 | | Rrf2 family transcriptional regulator | insig. | 33 | 97 |
| o | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS21125 | | Rrf2 family transcriptional regulator | no data | 32 | 97 |
| o | Ralstonia solanacearum UW163 | UW163_RS22265 | | Rrf2 family transcriptional regulator | no data | 32 | 97 |
| o | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS14435 | | Rrf2 family transcriptional regulator | insig. | 28 | 92 |
| o | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS14015 | | transcriptional regulator | insig. | 32 | 92 |
| o | Ralstonia sp. UNC404CL21Col | ABZR87_RS21595 | | Rrf2 family transcriptional regulator | no data | 32 | 74 |
| o | Paraburkholderia sabiae LMG 24235 | QEN71_RS23230 | | Rrf2 family transcriptional regulator | insig. | 37 | 92 |
| o | Magnetospirillum magneticum AMB-1 | AMB_RS20330 | | Rrf2 family transcriptional regulator | no data | 33 | 90 |
| o | Paraburkholderia graminis OAS925 | ABIE53_001801 | | Rrf2 family protein | no data | 33 | 93 |
| o | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_05077 | | transcriptional regulator, BadM/Rrf2 family | no data | 34 | 90 |
| o | Burkholderia phytofirmans PsJN | BPHYT_RS07935 | | Rrf2 family transcriptional regulator | insig. | 34 | 92 |
| | Rhizobium sp. OAE497 | ABIE40_RS15030 | | Rrf2 family transcriptional regulator | insig. | 30 | 97 |
| o | Bifidobacterium breve UCC2003 | BBR_RS18715 | | transcriptional regulator | sig. | 28 | 88 |
| | Rhizobium sp. OAE497 | ABIE40_RS27190 | | Rrf2 family transcriptional regulator | insig. | 35 | 54 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_22920 | | transcriptional regulator | cofit | 30 | 94 |
| | Erwinia tracheiphila SCR3 | LU632_RS11645 | | Rrf2 family transcriptional regulator | insig. | 30 | 94 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS05810 | | Rrf2 family transcriptional regulator | cofit | 27 | 93 |
| | Pantoea sp. MT58 | IAI47_10320 | | Rrf2 family transcriptional regulator | insig. | 27 | 93 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2591 | | transcriptional regulator, BadM/Rrf2 family (RefSeq) | strong | 32 | 88 |
| | Erwinia amylovora T8 | OLJFJH_14045 | | transcriptional regulator | sig. | 29 | 67 |
| | Escherichia fergusonii Becca | EFB2_04357 | | HTH-type transcriptional repressor NsrR | sig. | 28 | 92 |
| | Escherichia coli ECOR27 | NOLOHH_04490 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | cofit | 28 | 92 |
| | Escherichia coli ECOR38 | HEPCGN_10455 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | cofit | 28 | 92 |
| | Escherichia coli ECRC100 | OKFHMN_12225 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | cofit | 28 | 92 |
| | Escherichia coli ECRC102 | NIAGMN_10075 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | cofit | 28 | 92 |
| | Escherichia coli ECRC98 | JDDGAC_15865 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | insig. | 28 | 92 |
| | Escherichia coli ECRC99 | KEDOAH_15930 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | no data | 28 | 92 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS24260 | | nitric oxide-sensing transcriptional repressor NsrR | insig. | 28 | 92 |
| | Escherichia coli BW25113 | b4178 | yjeB | predicted DNA-binding transcriptional regulator (NCBI) | strong | 28 | 92 |
| | Acinetobacter baumannii LAC-4 | RR41_RS13500 | | Rrf2 family transcriptional regulator | no data | 28 | 89 |
| | Serratia liquefaciens MT49 | IAI46_18835 | | Rrf2 family transcriptional regulator | insig. | 31 | 57 |
| | Serratia liquefaciens MT49 | IAI46_09920 | | Rrf2 family transcriptional regulator | no data | 32 | 52 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_11070 | | nitric oxide-sensing transcriptional repressor NsrR | insig. | 30 | 92 |
| | Klebsiella michiganensis M5al | BWI76_RS12960 | | transcriptional regulator | no data | 33 | 52 |
| | Rahnella sp. WP5 | EX31_RS01500 | | transcriptional regulator | insig. | 32 | 50 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_1471 | | Predicted transcriptional regulator | insig. | 33 | 52 |
| | Agrobacterium fabrum C58 | Atu0201 | | hypothetical protein | strong | 27 | 77 |
| | Rhizobium sp. OAE497 | ABIE40_RS03340 | | iron-responsive transcriptional regulator RirA | strong | 27 | 77 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS03750 | | Rrf2 family transcriptional regulator | insig. | 30 | 53 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_13525 | | transcriptional regulator | no data | 30 | 53 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS34785 | | Rrf2 family transcriptional regulator | insig. | 30 | 53 |
| | Escherichia coli ECRC101 | MCAODC_02740 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | sig. | 29 | 71 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c26400 | | putative HTH-type transcriptional regulator | insig. | 26 | 100 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_02535 | | transcriptional regulator | sig. | 32 | 52 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_3375 | | transcriptional regulator, BadM/Rrf2 family | insig. | 28 | 90 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF831 | | Nitrite-sensitive transcriptional repressor NsrR | insig. | 26 | 92 |
| | Escherichia coli BL21 | ECD_04045 | | nitric oxide-sensitive repressor for NO regulon | sig. | 28 | 92 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_03864 | | HTH-type transcriptional repressor NsrR | insig. | 28 | 92 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS13175 | | Rrf2 family transcriptional regulator | insig. | 27 | 90 |
| | Enterobacter sp. TBS_079 | MPMX20_01156 | | hypothetical protein | strong | 32 | 52 |
| | Mycobacterium tuberculosis H37Rv | Rv1287 | | Conserved hypothetical protein | insig. | 28 | 76 |
| | Escherichia coli ECRC62 | BNILDI_07000 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | cofit | 28 | 92 |
| | Enterobacter sp. TBS_079 | MPMX20_00459 | | HTH-type transcriptional repressor NsrR | strong | 27 | 90 |
| | Shewanella sp. ANA-3 | Shewana3_0047 | | BadM/Rrf2 family transcriptional regulator (RefSeq) | no data | 33 | 73 |
| | Synechococcus elongatus PCC 7942 | Synpcc7942_2585 | | transcriptional regulator, BadM/Rrf2 family | sig. | 37 | 37 |
| | Klebsiella michiganensis M5al | BWI76_RS02570 | | transcriptional regulator | strong | 29 | 92 |
| | Agrobacterium fabrum C58 | Atu4299 | | hypothetical protein | insig. | 24 | 88 |
| | Rhodospirillum rubrum S1H | Rru_A2574 | | Transcriptional Regulator, BadM/Rrf2 family (NCBI) | sig. | 28 | 61 |
| | Pseudomonas sp. BP01 | JOY50_RS07645 | | Rrf2 family transcriptional regulator | insig. | 31 | 52 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1470 | | transcriptional regulator, BadM/Rrf2 family | no data | 25 | 64 |