| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Methanococcus maripaludis S2 | MMP_RS00450 | | 4Fe-4S binding protein | strong | 100 | 100 |
| o | Methanococcus maripaludis JJ | MMJJ_RS05035 | | 4Fe-4S binding protein | sig. | 98 | 100 |
| o | Fusobacterium nucleatum SB010 | HUW76_05415 | | sulfite reductase subunit C | cofit | 32 | 91 |
| o | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2442 | | Anaerobic sulfite reductase subunit C (EC 1.8.1.-) | insig. | 26 | 90 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0403 | dvsB | dissimilatory sulfite reductase beta subunit (TIGR) | no data | 27 | 95 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0885 | | nitrite and sulphite reductase 4Fe-4S region (RefSeq) | no data | 26 | 49 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1080 | | iron-sulfur cluster-binding protein (TIGR) | sig. | 26 | 52 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS17035 | | dissimilatory-type sulfite reductase subunit alpha | cofit | 24 | 97 |
| | Sphingobium sp. HT1-2 | GFF1183 | | Nitrite reductase [NAD(P)H] large subunit (EC 1.7.1.4) | cofit | 29 | 54 |
| | Azospirillum sp. SherDot2 | MPMX19_00652 | | Sulfite reductase [ferredoxin] | strong | 32 | 52 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1554 | | sulfite reductase, dissimilatory-type beta subunit (RefSeq) | no data | 25 | 96 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS17040 | | dissimilatory-type sulfite reductase subunit beta | insig. | 27 | 86 |
| | Dechlorosoma suillum PS | Dsui_1825 | | NAD(P)H-dependent nitrite reductase, large subunit | cofit | 28 | 49 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS16910 | | nitrite reductase large subunit NirB | cofit | 34 | 48 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS31785 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 33 | 49 |
| | Methylophilus sp. DMC18 | GFF200 | | Nitrite reductase [NAD(P)H] | cofit | 33 | 49 |
| | Paraburkholderia graminis OAS925 | ABIE53_002205 | | nitrite reductase (NADH) large subunit | insig. | 33 | 49 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_2637 | | Nitrite reductase [NAD(P)H] large subunit (EC 1.7.1.4) | insig. | 33 | 49 |
| | Methylophilus sp. DMC18 | GFF1019 | | Sulfite reductase [ferredoxin] | no data | 31 | 54 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS09840 | | nitrite reductase | insig. | 33 | 49 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS37810 | | nitrite reductase large subunit NirB | insig. | 33 | 49 |
| | Ralstonia solanacearum GMI1000 | RS_RS23035 | | nitrite reductase large subunit | insig. | 33 | 49 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0464 | | nitrite and sulphite reductase 4Fe-4S region (RefSeq) | insig. | 30 | 52 |
| | Pseudomonas stutzeri RCH2 | Psest_1928 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 28 | 49 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_00967 | | assimilatory nitrite reductase (NAD(P)H) large subunit precursor (EC 1.7.1.4) | sig. | 33 | 49 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS15550 | | sulfite reductase | strong | 31 | 54 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS17995 | | nitrite reductase large subunit | insig. | 33 | 49 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS05610 | | nitrite reductase large subunit | insig. | 33 | 49 |
| | Ralstonia solanacearum UW163 | UW163_RS21135 | | nitrite reductase large subunit | insig. | 33 | 49 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS20595 | nirB;go_function=nitrite | nitrite reductase large subunit NirB | insig. | 28 | 49 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_08610 | | nitrite reductase large subunit | sig. | 28 | 49 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS54675 | nirB;go_function=nitrite | nitrite reductase large subunit NirB | insig. | 28 | 49 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4101 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 28 | 49 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS18870 | | nitrite reductase large subunit NirB | strong | 32 | 52 |
| | Pseudomonas sp. DMC3 | GFF5247 | | Nitrite reductase [NAD(P)H] | strong | 28 | 49 |
| | Pseudomonas sp. RS175 | PFR28_01049 | | Nitrite reductase [NAD(P)H] | insig. | 28 | 49 |
| | Pseudomonas orientalis W4I3 | QF045_RS22790 | | nitrite reductase large subunit NirB | insig. | 28 | 49 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_3837 | | Nitrite reductase [NAD(P)H] large subunit (EC 1.7.1.4) | strong | 28 | 49 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_00805 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 28 | 49 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_02770 | | nitrite reductase | insig. | 28 | 49 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2378 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 28 | 49 |
| | Azospirillum brasilense Sp245 | AZOBR_RS10125 | | sulfite reductase | strong | 28 | 61 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1597 | sir | sulfite reductase, assimilatory-type (TIGR) | insig. | 31 | 52 |
| | Azospirillum sp. SherDot2 | MPMX19_05926 | | Nitrite reductase [NAD(P)H] | insig. | 26 | 49 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1498 | | Sulfite reductase, beta subunit (hemoprotein) | strong | 31 | 51 |
| | Pectobacterium carotovorum WPP14 | HER17_RS07330 | | nitrite reductase large subunit NirB | insig. | 30 | 49 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS02745 | | nitrite reductase large subunit | no data | 27 | 49 |
| | Azospirillum brasilense Sp245 | AZOBR_RS18565 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 25 | 49 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS03855 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 32 | 49 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS16270 | | sulfite reductase | strong | 28 | 56 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS14535 | | nitrite reductase | strong | 32 | 49 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS09995 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 32 | 48 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_24590 | | nitrite reductase (NAD(P)H) | insig. | 30 | 49 |
| | Pseudomonas segetis P6 | MPMX49_02597 | | Sulfite reductase [ferredoxin] | no data | 29 | 54 |
| | Pseudomonas stutzeri RCH2 | Psest_2089 | | Sulfite reductase, beta subunit (hemoprotein) | no data | 29 | 54 |
| | Acinetobacter baumannii LAC-4 | RR41_RS07880 | | nitrite reductase large subunit NirB | insig. | 31 | 49 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS28130 | | nitrite/sulfite reductase | insig. | 28 | 58 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_21270 | | sulfite reductase | insig. | 28 | 58 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS47510 | | nitrite/sulfite reductase | insig. | 28 | 58 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1667 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | sig. | 27 | 49 |
| | Pseudomonas sp. SVBP6 | COO64_RS07075 | nirB | nitrite reductase large subunit NirB | insig. | 30 | 49 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2073 | | Sulfite reductase [NADPH] hemoprotein beta-component (EC 1.8.1.2) | strong | 29 | 54 |
| | Pseudomonas simiae WCS417 | PS417_14730 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 28 | 49 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS20920 | | nitrite/sulfite reductase | strong | 28 | 54 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_08940 | | sulfite reductase | strong | 28 | 54 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS55000 | | nitrite/sulfite reductase | strong | 28 | 54 |
| | Klebsiella michiganensis M5al | BWI76_RS17365 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 30 | 49 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_00555 | | sulfite reductase | strong | 29 | 54 |
| | Enterobacter sp. TBS_079 | MPMX20_02621 | | Nitric oxide reductase FlRd-NAD(+) reductase | sig. | 28 | 49 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_1901 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 31 | 48 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_0845 | | nitrite reductase [NAD(P)H], large subunit/nitrite reductase [NAD(P)H], small subunit | insig. | 28 | 49 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS04600 | | sulfite reductase | sig. | 28 | 54 |
| | Ralstonia solanacearum UW163 | UW163_RS09070 | | sulfite reductase | strong | 28 | 54 |
| | Rahnella sp. WP5 | EX31_RS09110 | | nitrite reductase small subunit NirD | insig. | 28 | 49 |
| | Acinetobacter radioresistens SK82 | MPMX26_01574 | | Nitrite reductase [NAD(P)H] | no data | 31 | 49 |
| | Pseudomonas sp. RS175 | PFR28_01366 | | Sulfite reductase [ferredoxin] | strong | 29 | 54 |
| | Ralstonia solanacearum GMI1000 | RS_RS12170 | | nitrite/sulfite reductase | strong | 28 | 54 |
| | Sinorhizobium meliloti 1021 | SM_b20984 | | Nitrite reductase (NAD(P)H) (EC 1.7.1.4) (from data) | strong | 26 | 49 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.2712.1 | | Nitrite reductase [NAD(P)H] large subunit (EC 1.7.1.4) | insig. | 26 | 49 |
| | Alteromonas macleodii MIT1002 | MIT1002_00698 | | Nitrite reductase [NAD(P)H] | cofit | 32 | 49 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_3285 | | Sulfite reductase [NADPH] hemoprotein beta-component (EC 1.8.1.2) | insig. | 29 | 54 |
| | Acinetobacter radioresistens SK82 | MPMX26_00614 | | Sulfite reductase [ferredoxin] | strong | 30 | 54 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS06890 | | nitrite reductase large subunit NirB | insig. | 29 | 49 |
| | Dickeya dadantii 3937 | DDA3937_RS14090 | | nitrite reductase small subunit NirD | insig. | 28 | 49 |
| | Agrobacterium fabrum C58 | Atu1456 | | sulfite reductase (NADPH) hemoprotein beta-component | strong | 28 | 51 |
| | Pseudomonas sp. S08-1 | OH686_03470 | | Sulfite reductase [NADPH] hemoprotein beta-component | strong | 28 | 54 |
| | Dickeya dianthicola ME23 | DZA65_RS14750 | | nitrite reductase small subunit NirD | insig. | 28 | 49 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS16715 | | nitrite reductase large subunit | insig. | 28 | 49 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS16715 | | nitrite reductase large subunit | strong | 28 | 49 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_03263 | | Nitrite reductase [NAD(P)H] | cofit | 28 | 49 |
| | Sinorhizobium meliloti 1021 | SMc02124 | | nitrite reductase | strong | 28 | 51 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_00114 | | sulfite reductase (NADPH) beta subunit | strong | 27 | 56 |
| | Caulobacter crescentus NA1000 | CCNA_01177 | | sulfite reductase, beta subunit | strong | 26 | 51 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_01177 | | sulfite reductase, beta subunit | cofit | 26 | 51 |
| | Dickeya dianthicola 67-19 | HGI48_RS14090 | | nitrite reductase small subunit NirD | insig. | 28 | 49 |
| | Dechlorosoma suillum PS | Dsui_1986 | | sulfite reductase, beta subunit (hemoprotein) | no data | 27 | 54 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1153 | | nitrite/sulfite reductase hemoprotein beta-component ferrodoxin domain protein (RefSeq) | no data | 27 | 54 |
| | Agrobacterium fabrum C58 | Atu3902 | | nitrite reductase large subunit | strong | 26 | 49 |
| | Rhizobium sp. OAE497 | ABIE40_RS25560 | | nitrite reductase large subunit NirB | insig. | 26 | 49 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_22865 | | sulfite reductase | insig. | 29 | 54 |