| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Methanococcus maripaludis S2 | MMP_RS08340 | | 4Fe-4S binding protein | strong | 100 | 100 |
| o | Methanococcus maripaludis JJ | MMJJ_RS06030 | | 4Fe-4S binding protein | strong | 98 | 100 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS02610 | | 4Fe-4S dicluster domain-containing protein | strong | 42 | 36 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS01900 | | 4Fe-4S dicluster domain-containing protein | strong | 42 | 36 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_04579 | | 4Fe-4S binding domain protein | strong | 41 | 36 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT1834 | | putative hydrogenase (NCBI ptt file) | strong | 39 | 36 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS10710 | | monomeric [FeFe] hydrogenase | insig. | 41 | 39 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_04235 | | NADH-quinone oxidoreductase subunit I | insig. | 33 | 36 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_14240 | | NADH-quinone oxidoreductase subunit I | no data | 31 | 55 |
| | Serratia liquefaciens MT49 | IAI46_12515 | | 4Fe-4S dicluster domain-containing protein | insig. | 35 | 35 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS17130 | | NADH-quinone oxidoreductase subunit I | no data | 32 | 52 |
| | Azospirillum sp. SherDot2 | MPMX19_03509 | | NAD(P)H-quinone oxidoreductase subunit I, chloroplastic | insig. | 38 | 34 |
| | Rahnella sp. WP5 | EX31_RS19925 | | 4Fe-4S dicluster domain-containing protein | insig. | 33 | 36 |
| | Variovorax sp. SCN45 | GFF133 | | Ferredoxin | insig. | 37 | 43 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS15200 | | formate hydrogenlyase subunit HycF | insig. | 36 | 34 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS23575 | | NADH-quinone oxidoreductase subunit I | no data | 31 | 54 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_00767 | | 4Fe-4S binding domain protein | insig. | 39 | 30 |
| | Methanococcus maripaludis JJ | MMJJ_RS06835 | | 4Fe-4S binding protein | strong | 32 | 49 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS01085 | | 4Fe-4S dicluster domain-containing protein | sig. | 38 | 31 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4713 | | Formate hydrogenlyase complex 3 iron-sulfur protein; Formate hydrogenlyase subunit 6; Ni,Fe-hydrogenase III medium subunit | insig. | 34 | 34 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_06130 | | indolepyruvate ferredoxin oxidoreductase | insig. | 27 | 64 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2797 | | NADH:quinone oxidoreductase subunit RnfB (Shelley Haveman) | strong | 38 | 38 |
| | Enterobacter sp. TBS_079 | MPMX20_03605 | | NAD(P)H-quinone oxidoreductase subunit I, chloroplastic | insig. | 38 | 34 |
| | Escherichia fergusonii Becca | EFB2_01203 | | NAD(P)H-quinone oxidoreductase subunit I, chloroplastic | insig. | 34 | 34 |
| | Methanococcus maripaludis S2 | MMP_RS07525 | | 4Fe-4S binding protein | strong | 31 | 49 |
| | Rhodospirillum rubrum S1H | Rru_A1563 | | NADH-quinone oxidoreductase, chain I (NCBI) | no data | 42 | 35 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_2811 | | Formate hydrogenlyase subunit 6/NADH:ubiquinone oxidoreductase 23 kD subunit (chain I) | insig. | 34 | 34 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_05805 | nuoI | NADH-quinone oxidoreductase subunit NuoI | no data | 33 | 45 |
| | Escherichia coli BL21 | ECD_02570 | | formate hydrogenlyase complex iron-sulfur protein | insig. | 34 | 34 |
| | Escherichia coli ECOR27 | NOLOHH_12440 | hycF | formate hydrogenlyase subunit HycF | insig. | 34 | 34 |
| | Escherichia coli ECOR38 | HEPCGN_19785 | hycF | formate hydrogenlyase subunit HycF | insig. | 34 | 34 |
| | Escherichia coli ECRC100 | OKFHMN_20595 | hycF | formate hydrogenlyase subunit HycF | insig. | 34 | 34 |
| | Escherichia coli ECRC101 | MCAODC_11120 | hycF | formate hydrogenlyase subunit HycF | sig. | 34 | 34 |
| | Escherichia coli ECRC102 | NIAGMN_18365 | hycF | formate hydrogenlyase subunit HycF | cofit | 34 | 34 |
| | Escherichia coli ECRC62 | BNILDI_10990 | hycF | formate hydrogenlyase subunit HycF | insig. | 34 | 34 |
| | Escherichia coli ECRC98 | JDDGAC_24260 | hycF | formate hydrogenlyase subunit HycF | insig. | 34 | 34 |
| | Escherichia coli ECRC99 | KEDOAH_07540 | hycF | formate hydrogenlyase subunit HycF | no data | 34 | 34 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01014 | | NAD(P)H-quinone oxidoreductase subunit I, chloroplastic | insig. | 34 | 34 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT0963 | | putative ferredoxin-type protein (NCBI ptt file) | sig. | 37 | 30 |
| | Rhodospirillum rubrum S1H | Rru_A0318 | | 4Fe-4S ferredoxin, iron-sulfur binding (NCBI) | insig. | 33 | 34 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS08975 | | NADH-quinone oxidoreductase subunit NuoI | no data | 35 | 50 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS11255 | | hydrogenase iron-sulfur subunit | insig. | 25 | 69 |
| | Escherichia coli BW25113 | b2720 | hycF | formate hydrogenlyase complex iron-sulfur protein (NCBI) | insig. | 34 | 34 |
| | Azospirillum brasilense Sp245 | AZOBR_RS07205 | | NADH dehydrogenase subunit I | no data | 42 | 35 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c10490 | | NADH-quinone oxidoreductase subunit I | no data | 40 | 35 |
| | Fusobacterium nucleatum SB010 | HUW76_06480 | | pyruvate:ferredoxin (flavodoxin) oxidoreductase | strong | 36 | 26 |
| | Sphingobium sp. HT1-2 | GFF2111 | | NADH-ubiquinone oxidoreductase chain I (EC 1.6.5.3) | no data | 34 | 51 |
| | Klebsiella michiganensis M5al | BWI76_RS22315 | | formate hydrogenlyase complex iron-sulfur subunit | insig. | 33 | 34 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_0329 | | NADH-quinone oxidoreductase, chain I | strong | 25 | 71 |
| | Enterobacter sp. TBS_079 | MPMX20_03211 | | NADH-quinone oxidoreductase subunit I | strong | 25 | 71 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_18080 | nuoI | NADH-quinone oxidoreductase subunit NuoI | strong | 23 | 99 |
| | Erwinia tracheiphila SCR3 | LU632_RS08000 | nuoI | NADH-quinone oxidoreductase subunit NuoI | strong | 23 | 99 |
| | Bosea sp. OAE506 | ABIE41_RS17900 | | NADH-quinone oxidoreductase subunit NuoI | no data | 32 | 59 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_02985 | | formate hydrogenlyase complex iron-sulfur subunit | no data | 33 | 45 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS08780 | | 4Fe-4S binding protein | strong | 36 | 31 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS00865 | | NADH-quinone oxidoreductase subunit NuoI | no data | 34 | 50 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS01090 | | NADH-quinone oxidoreductase subunit NuoI | no data | 34 | 50 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_0119 | | NADH dehydrogenase subunit I (EC 1.6.5.3) | strong | 35 | 45 |
| | Dechlorosoma suillum PS | Dsui_3042 | | NADH-quinone oxidoreductase, chain I | no data | 35 | 35 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS09020 | | 4Fe-4S binding protein | insig. | 32 | 34 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_27035 | | NADH-quinone oxidoreductase subunit NuoI | sig. | 25 | 71 |
| | Methanococcus maripaludis JJ | MMJJ_RS06835 | | 4Fe-4S binding protein | strong | 38 | 35 |
| | Methanococcus maripaludis S2 | MMP_RS07525 | | 4Fe-4S binding protein | strong | 38 | 35 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS13970 | | NADH-quinone oxidoreductase subunit I | no data | 37 | 35 |
| | Sinorhizobium meliloti 1021 | SMa1519 | | NADH:ubiquinone oxidoreductase subunit 6 (chain I) | insig. | 34 | 34 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1322 | | NADH-quinone oxidoreductase, chain I (RefSeq) | no data | 31 | 62 |
| | Rahnella sp. WP5 | EX31_RS19400 | | NADH-quinone oxidoreductase subunit NuoI | strong | 27 | 71 |
| | Pectobacterium carotovorum WPP14 | HER17_RS07160 | | NADH-quinone oxidoreductase subunit NuoI | no data | 24 | 71 |
| | Methanococcus maripaludis JJ | MMJJ_RS07945 | | 4Fe-4S binding protein | strong | 40 | 34 |
| | Methanococcus maripaludis S2 | MMP_RS06405 | | 4Fe-4S binding protein | no data | 40 | 34 |
| | Serratia liquefaciens MT49 | IAI46_17675 | | NADH-quinone oxidoreductase subunit NuoI | insig. | 27 | 71 |
| | Methanococcus maripaludis S2 | MMP_RS04290 | | 4Fe-4S binding protein | sig. | 30 | 62 |
| | Methanococcus maripaludis S2 | MMP_RS08720 | | 4Fe-4S binding protein | strong | 39 | 35 |
| | Lysobacter sp. OAE881 | ABIE51_RS08350 | | NADH-quinone oxidoreductase subunit NuoI | no data | 31 | 45 |
| | Escherichia coli BL21 | ECD_02206 | | NADH:ubiquinone oxidoreductase, chain I | strong | 25 | 71 |
| | Escherichia fergusonii Becca | EFB2_01578 | | NADH-quinone oxidoreductase subunit I | insig. | 25 | 71 |
| | Escherichia coli ECOR27 | NOLOHH_14495 | nuoI | NADH-quinone oxidoreductase subunit NuoI | cofit | 25 | 71 |
| | Escherichia coli ECOR38 | HEPCGN_22080 | nuoI | NADH-quinone oxidoreductase subunit NuoI | strong | 25 | 71 |
| | Escherichia coli ECRC100 | OKFHMN_22875 | nuoI | NADH-quinone oxidoreductase subunit NuoI | cofit | 25 | 71 |
| | Escherichia coli ECRC101 | MCAODC_13915 | nuoI | NADH-quinone oxidoreductase subunit NuoI | cofit | 25 | 71 |
| | Escherichia coli ECRC102 | NIAGMN_20645 | nuoI | NADH-quinone oxidoreductase subunit NuoI | strong | 25 | 71 |
| | Escherichia coli ECRC62 | BNILDI_13415 | nuoI | NADH-quinone oxidoreductase subunit NuoI | cofit | 25 | 71 |
| | Escherichia coli ECRC98 | JDDGAC_26840 | nuoI | NADH-quinone oxidoreductase subunit NuoI | insig. | 25 | 71 |
| | Escherichia coli ECRC99 | KEDOAH_05320 | nuoI | NADH-quinone oxidoreductase subunit NuoI | no data | 25 | 71 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01425 | | NADH-quinone oxidoreductase subunit I | insig. | 25 | 71 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS13250 | | NADH-quinone oxidoreductase subunit NuoI | strong | 25 | 71 |
| | Escherichia coli BW25113 | b2281 | nuoI | NADH dehydrogenase subunit I (NCBI) | strong | 25 | 71 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF1884 | | NADH-ubiquinone oxidoreductase chain I (EC 1.6.5.3) | cofit | 25 | 71 |
| | Agrobacterium fabrum C58 | Atu1278 | | NADH ubiquinone oxidoreductase chain I | no data | 40 | 35 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS06365 | | NADH-quinone oxidoreductase subunit NuoI | no data | 40 | 35 |
| | Methanococcus maripaludis JJ | MMJJ_RS05645 | | 4Fe-4S binding protein | sig. | 39 | 35 |
| | Dickeya dadantii 3937 | DDA3937_RS14300 | | NADH-quinone oxidoreductase subunit NuoI | no data | 26 | 71 |
| | Dickeya dianthicola 67-19 | HGI48_RS14275 | | NADH-quinone oxidoreductase subunit NuoI | no data | 26 | 71 |
| | Dickeya dianthicola ME23 | DZA65_RS14950 | | NADH-quinone oxidoreductase subunit NuoI | no data | 26 | 71 |
| | Klebsiella michiganensis M5al | BWI76_RS20155 | | NADH-quinone oxidoreductase subunit I | strong | 25 | 71 |
| | Rhodopseudomonas palustris CGA009 | TX73_015245 | | NADH-quinone oxidoreductase subunit NuoI | insig. | 40 | 35 |
| | Rhizobium sp. OAE497 | ABIE40_RS07225 | | NADH-quinone oxidoreductase subunit NuoI | no data | 40 | 35 |