| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Azospirillum sp. SherDot2 | MPMX19_04829 | | Putative HTH-type transcriptional regulator | no data | 100 | 100 |
| o | Rhodospirillum rubrum S1H | Rru_A2574 | | Transcriptional Regulator, BadM/Rrf2 family (NCBI) | sig. | 55 | 84 |
| o | Rhodanobacter sp. FW510-T8 | OKGIIK_09970 | iscR | SUF system Fe-S cluster assembly regulator | sig. | 46 | 100 |
| o | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS09485 | | SUF system Fe-S cluster assembly regulator | insig. | 45 | 98 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.1701.1 | | Iron-sulfur cluster regulator IscR | no data | 43 | 88 |
| o | Rhodanobacter denitrificans MT42 | LRK55_RS02850 | | SUF system Fe-S cluster assembly regulator | no data | 48 | 85 |
| o | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS03100 | | SUF system Fe-S cluster assembly regulator | no data | 48 | 85 |
| o | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS06870 | | SUF system Fe-S cluster assembly regulator | insig. | 47 | 85 |
| o | Lysobacter sp. OAE881 | ABIE51_RS15725 | | SUF system Fe-S cluster assembly regulator | insig. | 46 | 86 |
| o | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1470 | | transcriptional regulator, BadM/Rrf2 family | no data | 45 | 90 |
| o | Castellaniella sp019104865 MT123 | ABCV34_RS04700 | | SUF system Fe-S cluster assembly regulator | no data | 41 | 97 |
| o | Sphingobium sp. HT1-2 | GFF975 | | Iron-sulfur cluster regulator IscR | cofit | 42 | 83 |
| o | Cupriavidus basilensis FW507-4G11 | RR42_RS09180 | | Rrf2 family transcriptional regulator | insig. | 32 | 93 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1964 | | transcriptional regulator, rrf2 protein, putative (TIGR) | strong | 37 | 84 |
| o | Desulfovibrio vulgaris Miyazaki F | DvMF_0622 | | transcriptional regulator, BadM/Rrf2 family (RefSeq) | insig. | 35 | 68 |
| o | Ralstonia solanacearum PSI07 | RPSI07_RS08075 | | Rrf2 family transcriptional regulator | insig. | 30 | 98 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS09195 | | Rrf2 family transcriptional regulator | insig. | 30 | 84 |
| | Ralstonia solanacearum UW163 | UW163_RS04400 | | Rrf2 family transcriptional regulator | insig. | 30 | 84 |
| | Caulobacter crescentus NA1000 | CCNA_02708 | | Rrf2 family protein | strong | 38 | 81 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_02708 | | Rrf2 family protein | cofit | 38 | 81 |
| | Ralstonia solanacearum GMI1000 | RS_RS17025 | | Rrf2 family transcriptional regulator | strong | 28 | 84 |
| | Azospirillum brasilense Sp245 | AZOBR_RS05830 | | Rrf2 family transcriptional regulator | strong | 31 | 96 |
| o | Ralstonia sp. UNC404CL21Col | ABZR87_RS04615 | | Rrf2 family transcriptional regulator | sig. | 26 | 96 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS15755 | | Rrf2 family transcriptional regulator | strong | 33 | 84 |
| | Azospirillum sp. SherDot2 | MPMX19_01654 | | HTH-type transcriptional regulator IscR | insig. | 32 | 84 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_1034 | | Nitrite-sensitive transcriptional repressor NsrR | sig. | 31 | 84 |
| | Acinetobacter radioresistens SK82 | MPMX26_01328 | | HTH-type transcriptional regulator IscR | strong | 31 | 84 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS09345 | | Rrf2 family transcriptional regulator | no data | 33 | 83 |
| | Xanthobacter sp. DMC5 | GFF791 | | HTH-type transcriptional regulator CymR | insig. | 35 | 82 |
| | Rhodospirillum rubrum S1H | Rru_A2028 | | Transcriptional Regulator, BadM/Rrf2 family (NCBI) | no data | 33 | 83 |
| | Acinetobacter baumannii LAC-4 | RR41_RS12350 | | Rrf2 family transcriptional regulator | no data | 30 | 84 |
| | Rhizobium sp. OAE497 | ABIE40_RS04485 | | Rrf2 family transcriptional regulator | insig. | 32 | 69 |
| | Caulobacter crescentus NA1000 | CCNA_01942 | | Rrf2 family protein | strong | 32 | 84 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_01942 | | Rrf2 family protein | cofit | 32 | 84 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1967 | rrf2 | transcriptional regulator, rrf2 protein, putative (TIGR) | sig. | 30 | 99 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0623 | | transcriptional regulator, BadM/Rrf2 family (RefSeq) | insig. | 27 | 99 |
| o | Agrobacterium fabrum C58 | Atu0201 | | hypothetical protein | strong | 27 | 84 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS05390 | | Rrf2 family transcriptional regulator | no data | 32 | 83 |
| | Methylophilus sp. DMC18 | GFF434 | | HTH-type transcriptional regulator IscR | insig. | 33 | 68 |
| | Rhizobium sp. OAE497 | ABIE40_RS03340 | | iron-responsive transcriptional regulator RirA | strong | 27 | 84 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2591 | | transcriptional regulator, BadM/Rrf2 family (RefSeq) | strong | 31 | 68 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS14260 | | Fe-S cluster assembly transcriptional regulator IscR | no data | 30 | 84 |
| | Ralstonia solanacearum UW163 | UW163_RS11725 | | Fe-S cluster assembly transcriptional regulator IscR | no data | 30 | 84 |
| | Sinorhizobium meliloti 1021 | SMc02267 | | hypothetical protein | insig. | 29 | 82 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS15265 | | Rrf2 family transcriptional regulator | no data | 32 | 83 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS04090 | | transcriptional regulator | no data | 28 | 83 |
| o | Burkholderia phytofirmans PsJN | BPHYT_RS08985 | | Rrf2 family transcriptional regulator | insig. | 26 | 85 |
| | Dechlorosoma suillum PS | Dsui_2369 | | iron-sulfur cluster assembly transcription factor IscR | strong | 30 | 68 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_2132 | | transcriptional regulator, BadM/Rrf2 family | strong | 32 | 81 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_3808 | | Predicted transcriptional regulator of NADH dehydrogenase, Rrf2 family | insig. | 29 | 73 |
| | Ralstonia solanacearum GMI1000 | RS_RS05040 | | Fe-S cluster assembly transcriptional regulator IscR | no data | 29 | 84 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS19205 | | Fe-S cluster assembly transcriptional regulator IscR | sig. | 29 | 84 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS15190 | | Rrf2 family transcriptional regulator | insig. | 26 | 94 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS22375 | | Rrf2 family transcriptional regulator | insig. | 24 | 85 |
| | Agrobacterium fabrum C58 | Atu0819 | | hypothetical protein | sig. | 26 | 87 |
| | Sinorhizobium meliloti 1021 | SM_b20994 | | hypothetical protein | strong | 28 | 84 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS09975 | | Fe-S cluster assembly transcriptional regulator IscR | strong | 28 | 84 |
| | Escherichia coli ECOR27 | NOLOHH_04490 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | cofit | 27 | 84 |
| | Escherichia coli ECOR38 | HEPCGN_10455 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | cofit | 27 | 84 |
| | Escherichia coli ECRC100 | OKFHMN_12225 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | cofit | 27 | 84 |
| | Escherichia coli ECRC102 | NIAGMN_10075 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | cofit | 27 | 84 |
| | Escherichia coli ECRC98 | JDDGAC_15865 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | insig. | 27 | 84 |
| | Escherichia coli ECRC99 | KEDOAH_15930 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | no data | 27 | 84 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_1458 | | transcriptional regulator, BadM/Rrf2 family | strong | 29 | 84 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS12005 | | Rrf2 family transcriptional regulator | no data | 28 | 83 |
| | Escherichia coli ECRC101 | MCAODC_02740 | nsrR | nitric oxide-sensing transcriptional repressor NsrR | sig. | 27 | 84 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_06790 | | transcriptional regulator | insig. | 31 | 69 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS22735 | | transcriptional regulator | insig. | 29 | 90 |
| | Escherichia fergusonii Becca | EFB2_04357 | | HTH-type transcriptional repressor NsrR | sig. | 27 | 84 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS24260 | | nitric oxide-sensing transcriptional repressor NsrR | insig. | 27 | 84 |
| | Escherichia coli BW25113 | b4178 | yjeB | predicted DNA-binding transcriptional regulator (NCBI) | strong | 27 | 84 |
| | Sinorhizobium meliloti 1021 | SMc00785 | | iron-responsive transcriptional regulator | no data | 25 | 84 |
| | Rhizobium sp. OAE497 | ABIE40_RS15020 | | Rrf2 family transcriptional regulator | insig. | 28 | 83 |
| | Pseudomonas segetis P6 | ACVTMO_RS05520 | | RrF2 family transcriptional regulator | sig. | 41 | 42 |
| | Marinobacter adhaerens HP15 | HP15_1487 | | transcriptional regulator, BadM/Rrf2 family | strong | 31 | 68 |
| | Rhodospirillum rubrum S1H | Rru_A3399 | | Transcriptional Regulator, BadM/Rrf2 family (NCBI) | sig. | 30 | 83 |
| | Pseudomonas sp. SVBP6 | COO64_RS03890 | iscR | Fe-S cluster assembly transcriptional regulator IscR | insig. | 29 | 84 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_03880 | | HTH-type transcriptional regulator IscR | insig. | 27 | 85 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF831 | | Nitrite-sensitive transcriptional repressor NsrR | insig. | 26 | 84 |
| | Pseudomonas segetis P6 | ACVTMO_RS07460 | iscR | Fe-S cluster assembly transcriptional regulator IscR | insig. | 29 | 84 |
| | Xanthobacter sp. DMC5 | GFF2219 | | HTH-type transcriptional regulator CymR | no data | 31 | 82 |
| | Azospirillum sp. SherDot2 | MPMX19_04817 | | HTH-type transcriptional repressor NsrR | no data | 28 | 83 |
| | Pantoea sp. MT58 | IAI47_05000 | | Fe-S cluster assembly transcriptional regulator IscR | strong | 26 | 84 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS13845 | iscR;go_function=double-stranded | Fe-S cluster assembly transcriptional regulator IscR | sig. | 29 | 84 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_19645 | | Fe-S cluster assembly transcriptional regulator IscR | strong | 29 | 84 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS43255 | iscR;go_function=double-stranded | Fe-S cluster assembly transcriptional regulator IscR | sig. | 29 | 84 |
| | Pseudomonas sp. DMC3 | GFF4351 | | HTH-type transcriptional regulator IscR | no data | 28 | 84 |
| | Pseudomonas sp. BP01 | JOY50_RS22825 | iscR | Fe-S cluster assembly transcriptional regulator IscR | insig. | 27 | 85 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS24860 | | Fe-S cluster assembly transcriptional regulator IscR | sig. | 29 | 84 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS24860 | | Fe-S cluster assembly transcriptional regulator IscR | strong | 29 | 84 |
| | Pseudomonas orientalis W4I3 | QF045_RS25425 | | Fe-S cluster assembly transcriptional regulator IscR | cofit | 29 | 84 |
| | Pseudomonas simiae WCS417 | PS417_23205 | | transcriptional regulator | strong | 29 | 84 |
| | Agrobacterium fabrum C58 | Atu3423 | | hypothetical protein | insig. | 28 | 83 |
| | Pseudomonas putida KT2440 | PP_0841 | | DNA-binding transcriptional dual regulator 2Fe-2S cluster IscR | sig. | 28 | 84 |
| | Erwinia amylovora T8 | OLJFJH_10360 | | Fe-S cluster assembly transcriptional regulator IscR | insig. | 27 | 84 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c26400 | | putative HTH-type transcriptional regulator | insig. | 24 | 81 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF4961 | | Iron-sulfur cluster regulator IscR | no data | 29 | 84 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS14460 | | Rrf2 family transcriptional regulator | no data | 43 | 49 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS04565 | | Rrf2 family transcriptional regulator | insig. | 30 | 87 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS12785 | | Rrf2 family transcriptional regulator | sig. | 29 | 84 |