| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0197 | | 4Fe-4S ferredoxin iron-sulfur binding domain protein (RefSeq) | insig. | 100 | 100 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0498 | | iron-sulfur cluster-binding protein, putative (TIGR) | insig. | 65 | 68 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0498 | | iron-sulfur cluster-binding protein, putative (TIGR) | insig. | 60 | 18 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT0333 | | conserved hypothetical protein (NCBI ptt file) | no data | 35 | 12 |
| | Methanococcus maripaludis JJ | MMJJ_RS00860 | | 4Fe-4S binding protein | insig. | 41 | 15 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_01680 | | 4Fe-4S binding domain protein | no data | 35 | 12 |
| | Caulobacter crescentus NA1000 | CCNA_02020 | | NADH-quinone oxidoreductase chain I | no data | 30 | 16 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_02020 | | NADH-quinone oxidoreductase chain I | no data | 30 | 16 |
| | Methanococcus maripaludis S2 | MMP_RS04290 | | 4Fe-4S binding protein | sig. | 40 | 15 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS06365 | | NADH-quinone oxidoreductase subunit NuoI | no data | 30 | 16 |
| | Methanococcus maripaludis JJ | MMJJ_RS05645 | | 4Fe-4S binding protein | sig. | 37 | 15 |
| | Methanococcus maripaludis S2 | MMP_RS08720 | | 4Fe-4S binding protein | strong | 37 | 15 |
| | Xanthobacter sp. DMC5 | GFF1242 | | NADH-quinone oxidoreductase subunit I | no data | 30 | 16 |
| | Methanococcus maripaludis JJ | MMJJ_RS05645 | | 4Fe-4S binding protein | sig. | 38 | 15 |
| | Methanococcus maripaludis S2 | MMP_RS08720 | | 4Fe-4S binding protein | strong | 38 | 15 |
| | Sphingobium sp. HT1-2 | GFF2111 | | NADH-ubiquinone oxidoreductase chain I (EC 1.6.5.3) | no data | 32 | 14 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS07500 | | benzoyl-CoA oxygenase | insig. | 40 | 12 |
| | Methanococcus maripaludis JJ | MMJJ_RS05620 | | CoB--CoM heterodisulfide reductase iron-sulfur subunit A family protein | strong | 33 | 15 |
| | Methanococcus maripaludis S2 | MMP_RS08740 | | CoB--CoM heterodisulfide reductase iron-sulfur subunit A family protein | no data | 33 | 15 |
| | Azospirillum sp. SherDot2 | MPMX19_01738 | | NADH-quinone oxidoreductase subunit I | no data | 30 | 16 |
| | Rhodospirillum rubrum S1H | Rru_A1563 | | NADH-quinone oxidoreductase, chain I (NCBI) | no data | 36 | 11 |
| | Azospirillum brasilense Sp245 | AZOBR_RS07205 | | NADH dehydrogenase subunit I | no data | 30 | 16 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2402 | hdrA | heterodisulfide reductase, A subunit (TIGR) | strong | 31 | 17 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0324 | | 4Fe-4S ferredoxin iron-sulfur binding domain protein (RefSeq) | strong | 31 | 17 |
| | Rhizobium sp. OAE497 | ABIE40_RS07225 | | NADH-quinone oxidoreductase subunit NuoI | no data | 28 | 16 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS13335 | | benzoyl-CoA oxygenase | no data | 39 | 12 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0701 | | NADH-quinone oxidoreductase, chain I | no data | 36 | 11 |
| | Rhodopseudomonas palustris CGA009 | TX73_015245 | | NADH-quinone oxidoreductase subunit NuoI | insig. | 36 | 11 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS04470 | | 4Fe-4S binding protein | no data | 32 | 12 |
| | Azospirillum sp. SherDot2 | MPMX19_03060 | | Ferredoxin-type protein NapF | no data | 42 | 13 |
| | Bosea sp. OAE506 | ABIE41_RS17900 | | NADH-quinone oxidoreductase subunit NuoI | no data | 36 | 11 |
| | Agrobacterium fabrum C58 | Atu1278 | | NADH ubiquinone oxidoreductase chain I | no data | 29 | 16 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2402 | hdrA | heterodisulfide reductase, A subunit (TIGR) | strong | 27 | 18 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS05975 | | ferredoxin | insig. | 38 | 13 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS13970 | | NADH-quinone oxidoreductase subunit I | no data | 38 | 11 |
| | Paraburkholderia graminis OAS925 | ABIE53_002877 | | benzoyl-CoA 2,3-dioxygenase component A | strong | 37 | 12 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c10490 | | NADH-quinone oxidoreductase subunit I | no data | 36 | 11 |
| | Sinorhizobium meliloti 1021 | SMc01922 | | NADH dehydrogenase subunit I | no data | 29 | 16 |
| | Methanococcus maripaludis JJ | MMJJ_RS07225 | | coenzyme F420 hydrogenase subunit gamma | strong | 45 | 11 |
| | Methanococcus maripaludis S2 | MMP_RS07130 | | coenzyme F420 hydrogenase subunit gamma | strong | 45 | 11 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1322 | | NADH-quinone oxidoreductase, chain I (RefSeq) | no data | 36 | 11 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS02520 | | NADH-ubiquinone oxidoreductase-F iron-sulfur binding region domain-containing protein | insig. | 35 | 14 |
| | Methanococcus maripaludis JJ | MMJJ_RS00855 | | CoB--CoM heterodisulfide reductase iron-sulfur subunit A family protein | insig. | 32 | 14 |
| | Methanococcus maripaludis S2 | MMP_RS04295 | | CoB--CoM heterodisulfide reductase iron-sulfur subunit A family protein | sig. | 32 | 14 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0262 | | Homocysteine formation from aspartate semialdehyde (NIL/ferredoxin component) (from data) | strong | 32 | 17 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS14755 | | 4Fe-4S binding protein | insig. | 35 | 15 |
| | Methanococcus maripaludis S2 | MMP_RS00450 | | 4Fe-4S binding protein | strong | 30 | 13 |
| | Shewanella oneidensis MR-1 | SO4506 | | iron-sulfur cluster-binding protein (NCBI ptt file) | strong | 33 | 14 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_2293 | | Electron transport complex protein RnfB | insig. | 40 | 14 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_04235 | | NADH-quinone oxidoreductase subunit I | insig. | 37 | 12 |
| | Methanococcus maripaludis JJ | MMJJ_RS05035 | | 4Fe-4S binding protein | sig. | 30 | 13 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2389 | | FAD-dependent pyridine nucleotide-disulphide oxidoreductase (RefSeq) | insig. | 44 | 13 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_00375 | | benzoyl-CoA oxygenase, component A | insig. | 35 | 12 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_05805 | nuoI | NADH-quinone oxidoreductase subunit NuoI | no data | 34 | 11 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2442 | | Anaerobic sulfite reductase subunit C (EC 1.8.1.-) | insig. | 38 | 13 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS00865 | | NADH-quinone oxidoreductase subunit NuoI | no data | 34 | 11 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS01090 | | NADH-quinone oxidoreductase subunit NuoI | no data | 34 | 11 |
| | Methanococcus maripaludis JJ | MMJJ_RS07945 | | 4Fe-4S binding protein | strong | 35 | 12 |
| | Methanococcus maripaludis S2 | MMP_RS06405 | | 4Fe-4S binding protein | no data | 35 | 12 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS06075 | | NADH-quinone oxidoreductase subunit NuoI | no data | 34 | 11 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS08975 | | NADH-quinone oxidoreductase subunit NuoI | no data | 34 | 11 |
| | Shewanella sp. ANA-3 | Shewana3_3913 | | 4Fe-4S ferredoxin iron-sulfur binding domain-containing protein (RefSeq) | cofit | 33 | 14 |
| | Sinorhizobium meliloti 1021 | SMa1519 | | NADH:ubiquinone oxidoreductase subunit 6 (chain I) | insig. | 43 | 11 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS08710 | | NADH-quinone oxidoreductase subunit NuoI | no data | 38 | 11 |
| | Dechlorosoma suillum PS | Dsui_2980 | | electron transport complex, RnfABCDGE type, B subunit | no data | 32 | 16 |
| | Methylophilus sp. DMC18 | GFF1729 | | Ion-translocating oxidoreductase complex subunit B | insig. | 31 | 19 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT1834 | | putative hydrogenase (NCBI ptt file) | strong | 25 | 24 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4241 | | hypothetical protein | insig. | 36 | 14 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_0119 | | NADH dehydrogenase subunit I (EC 1.6.5.3) | strong | 34 | 11 |