| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Methanococcus maripaludis S2 | MMP_RS07130 | | coenzyme F420 hydrogenase subunit gamma | strong | 100 | 100 |
| o | Methanococcus maripaludis JJ | MMJJ_RS07225 | | coenzyme F420 hydrogenase subunit gamma | strong | 100 | 100 |
| | Methanococcus maripaludis JJ | MMJJ_RS00890 | | coenzyme F420 hydrogenase subunit gamma | insig. | 60 | 100 |
| | Methanococcus maripaludis S2 | MMP_RS04260 | | coenzyme F420 hydrogenase subunit gamma | insig. | 60 | 100 |
| | Methanococcus maripaludis JJ | MMJJ_RS00870 | | F420-nonreducing hydrogenase | insig. | 35 | 84 |
| | Methanococcus maripaludis S2 | MMP_RS04280 | | coenzyme F420-non-reducing hydrogenase subunit gamma | sig. | 34 | 84 |
| | Methanococcus maripaludis JJ | MMJJ_RS05630 | | F420-non-reducing hydrogenase subunit | no data | 36 | 62 |
| | Methanococcus maripaludis S2 | MMP_RS08730 | | F420-non-reducing hydrogenase subunit | no data | 36 | 62 |
| | Synechocystis sp000284455 PCC 6803 | SGL_RS09740 | | oxidoreductase | no data | 32 | 69 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS17175 | | NADP oxidoreductase | insig. | 32 | 62 |
| | Synechococcus elongatus PCC 7942 | Synpcc7942_2556 | hoxY | NAD-reducing hydrogenase HoxS delta subunit | insig. | 27 | 69 |
| | Dechlorosoma suillum PS | Dsui_3028 | | coenzyme F420-reducing hydrogenase, gamma subunit | insig. | 31 | 64 |
| | Methanococcus maripaludis JJ | MMJJ_RS06845 | | NADH-quinone oxidoreductase subunit B family protein | no data | 27 | 61 |
| | Methanococcus maripaludis S2 | MMP_RS07515 | | NADH-quinone oxidoreductase subunit B family protein | no data | 27 | 61 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0432 | | Ech hydrogenase, subunit EchC, putative (TIGR) | sig. | 25 | 61 |
| | Rhodospirillum rubrum S1H | Rru_A0321 | | NADH dehydrogenase (ubiquinone), 20 kDa subunit (NCBI) | insig. | 26 | 65 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS01045 | | NADH-quinone oxidoreductase subunit NuoB | insig. | 28 | 61 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1520 | | NADH ubiquinone oxidoreductase 20 kDa subunit (RefSeq) | no data | 24 | 61 |
| | Azospirillum brasilense Sp245 | AZOBR_RS14505 | | hydrogenase | insig. | 29 | 57 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_05510 | | 4Fe-4S binding domain protein | cofit | 39 | 25 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT0125 | | NADH:ubiquinone oxidoreductase subunit (NCBI ptt file) | sig. | 34 | 54 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS17170 | | NADH-quinone oxidoreductase subunit B | no data | 26 | 55 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS23535 | | NADH dehydrogenase | no data | 26 | 55 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_07610 | hycG | formate hydrogenlyase | insig. | 26 | 59 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS06345 | | Fe-S cluster domain-containing protein | strong | 52 | 18 |
| | Methanococcus maripaludis S2 | MMP_RS07005 | | 4Fe-4S binding protein | sig. | 35 | 36 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_3192 | | NADH ubiquinone oxidoreductase 20 kDa subunit (RefSeq) | no data | 30 | 44 |
| | Rhodospirillum rubrum S1H | Rru_A1422 | | NADH ubiquinone oxidoreductase, 20 kDa subunit (NCBI) | insig. | 28 | 41 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_14205 | | NADH-quinone oxidoreductase subunit B | no data | 25 | 55 |
| | Dickeya dianthicola ME23 | DZA65_RS07820 | | NADH-quinone oxidoreductase subunit B family protein | insig. | 25 | 94 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2288 | | hydrogenase, CooL subunit, putative (TIGR) | no data | 29 | 44 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_2810 | | Ni,Fe-hydrogenase III small subunit | insig. | 28 | 64 |
| | Enterobacter sp. TBS_079 | MPMX20_03604 | | Formate hydrogenlyase subunit 7 | insig. | 28 | 64 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS11735 | | NADH-quinone oxidoreductase subunit NuoB | insig. | 25 | 59 |
| | Dickeya dianthicola 67-19 | HGI48_RS07310 | | NADH-quinone oxidoreductase subunit B family protein | insig. | 26 | 75 |
| | Methanococcus maripaludis JJ | MMJJ_RS06035 | | NADH-quinone oxidoreductase subunit B family protein | strong | 26 | 41 |
| | Synechococcus elongatus PCC 7942 | Synpcc7942_1181 | ndhK | NADH dehydrogenase subunit B | no data | 29 | 40 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT1834 | | putative hydrogenase (NCBI ptt file) | strong | 28 | 48 |
| | Escherichia coli BL21 | ECD_02381 | | hydrogenase 4, Fe-S subunit | insig. | 28 | 54 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01237 | | Formate hydrogenlyase subunit 7 | insig. | 28 | 54 |
| | Klebsiella michiganensis M5al | BWI76_RS22310 | | hydrogenase 3 small subunit | insig. | 28 | 61 |
| | Synechocystis sp000284455 PCC 6803 | SGL_RS10730 | | photosynthetic/respiratory NAD(P)H-quinone oxidoreductase subunit K | no data | 28 | 41 |
| | Methanococcus maripaludis S2 | MMP_RS08335 | | NADH-quinone oxidoreductase subunit B family protein | strong | 26 | 41 |
| | Escherichia coli BL21 | ECD_02569 | | hydrogenase 3 and formate hydrogenase complex, HycG subunit | insig. | 28 | 61 |
| | Escherichia fergusonii Becca | EFB2_01204 | | Formate hydrogenlyase subunit 7 | cofit | 28 | 61 |
| | Escherichia coli ECOR27 | NOLOHH_12445 | hycG | formate hydrogenlyase subunit HycG | insig. | 28 | 61 |
| | Escherichia coli ECOR38 | HEPCGN_19790 | hycG | formate hydrogenlyase subunit HycG | insig. | 28 | 61 |
| | Escherichia coli ECRC100 | OKFHMN_20600 | hycG | formate hydrogenlyase subunit HycG | cofit | 28 | 61 |
| | Escherichia coli ECRC101 | MCAODC_11125 | hycG | formate hydrogenlyase subunit HycG | insig. | 28 | 61 |
| | Escherichia coli ECRC102 | NIAGMN_18370 | hycG | formate hydrogenlyase subunit HycG | insig. | 28 | 61 |
| | Escherichia coli ECRC62 | BNILDI_10995 | hycG | formate hydrogenlyase subunit HycG | insig. | 28 | 61 |
| | Escherichia coli ECRC98 | JDDGAC_24265 | hycG | formate hydrogenlyase subunit HycG | insig. | 28 | 61 |
| | Escherichia coli ECRC99 | KEDOAH_07535 | hycG | formate hydrogenlyase subunit HycG | no data | 28 | 61 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01015 | | Formate hydrogenlyase subunit 7 | insig. | 28 | 61 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS15195 | | formate hydrogenlyase subunit HycG | insig. | 28 | 61 |
| | Escherichia coli BW25113 | b2719 | hycG | hydrogenase 3 and formate hydrogenase complex, HycG subunit (NCBI) | insig. | 28 | 61 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_02980 | | formate hydrogenlyase | insig. | 27 | 72 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0197 | | 4Fe-4S ferredoxin iron-sulfur binding domain protein (RefSeq) | insig. | 45 | 20 |
| | Synechocystis sp000284455 PCC 6803 | SGL_RS08535 | | NIL domain-containing protein | strong | 32 | 39 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS20105 | | Fe-S cluster domain-containing protein | strong | 50 | 18 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4712 | | Formate hydrogenlyase subunit 7 | insig. | 28 | 61 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS04220 | | glycyl-radical enzyme activating protein | insig. | 35 | 21 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS12510 | | glycyl-radical enzyme activating protein | insig. | 35 | 21 |
| | Methanococcus maripaludis JJ | MMJJ_RS02890 | | ATP-binding protein | insig. | 33 | 25 |
| | Methanococcus maripaludis S2 | MMP_RS02385 | | ATP-binding protein | insig. | 33 | 25 |
| | Escherichia coli ECOR38 | HEPCGN_21030 | hyfI | hydrogenase 4 catalytic subunit HyfI | insig. | 27 | 54 |
| | Escherichia coli ECRC100 | OKFHMN_21860 | hyfI | hydrogenase 4 catalytic subunit HyfI | cofit | 27 | 54 |
| | Escherichia coli ECRC101 | MCAODC_12390 | hyfI | hydrogenase 4 catalytic subunit HyfI | insig. | 27 | 54 |
| | Escherichia coli ECRC102 | NIAGMN_19630 | hyfI | hydrogenase 4 catalytic subunit HyfI | cofit | 27 | 54 |
| | Escherichia coli ECRC62 | BNILDI_12320 | hyfI | hydrogenase 4 catalytic subunit HyfI | insig. | 27 | 54 |
| | Escherichia coli ECRC98 | JDDGAC_25805 | hyfI | hydrogenase 4 catalytic subunit HyfI | insig. | 27 | 54 |
| | Escherichia coli ECRC99 | KEDOAH_06360 | hyfI | hydrogenase 4 catalytic subunit HyfI | no data | 27 | 54 |
| | Escherichia coli BW25113 | b2489 | hyfI | hydrogenase 4, Fe-S subunit (NCBI) | insig. | 27 | 54 |
| | Dickeya dadantii 3937 | DDA3937_RS07435 | | NADH-quinone oxidoreductase subunit B family protein | insig. | 24 | 94 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS15125 | | Fe-S cluster domain-containing protein | no data | 48 | 18 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_04579 | | 4Fe-4S binding domain protein | strong | 27 | 48 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS15645 | | EFR1 family ferrodoxin | insig. | 45 | 18 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_02507 | | putative ferredoxin-type protein NapF | insig. | 45 | 18 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS02350 | | [Fe-Fe] hydrogenase large subunit C-terminal domain-containing protein | insig. | 37 | 20 |
| | Shewanella oneidensis MR-1 | SO3920 | hydA | periplasmic Fe hydrogenase, large subunit (NCBI ptt file) | insig. | 36 | 25 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS08745 | | NADH-quinone oxidoreductase subunit B | no data | 23 | 58 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_02216 | | 4Fe-4S binding domain protein | insig. | 39 | 27 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS02520 | | NADH-ubiquinone oxidoreductase-F iron-sulfur binding region domain-containing protein | insig. | 38 | 22 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0262 | | Homocysteine formation from aspartate semialdehyde (NIL/ferredoxin component) (from data) | strong | 49 | 18 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0686 | | iron-sulfur cluster-binding protein (TIGR) | insig. | 45 | 25 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_05603 | | 4Fe-4S binding domain protein | insig. | 29 | 54 |
| | Shewanella sp. ANA-3 | Shewana3_0711 | | response regulator receiver protein (RefSeq) | insig. | 40 | 20 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1769 | hydA | periplasmic [Fe] hydrogenase, large subunit (TIGR) | insig. | 40 | 20 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS00630 | | benzoyl-CoA 2,3-epoxidase subunit BoxA | insig. | 38 | 21 |
| | Rhodopseudomonas palustris CGA009 | TX73_022085 | | NADH-quinone oxidoreductase subunit B | strong | 31 | 40 |
| | Azospirillum sp. SherDot2 | MPMX19_03508 | | Formate hydrogenlyase subunit 7 | insig. | 27 | 61 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS17505 | | formate hydrogenlyase | cofit | 26 | 59 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS17280 | | formate hydrogenlyase | cofit | 26 | 59 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS08535 | | NADH-quinone oxidoreductase subunit B | insig. | 24 | 39 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS13330 | | NADH-quinone oxidoreductase subunit B | sig. | 24 | 39 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS17205 | | 4Fe-4S binding protein | insig. | 24 | 57 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS17730 | | 4Fe-4S binding protein | insig. | 24 | 57 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0711 | | NADH-quinone oxidoreductase, B subunit | no data | 22 | 41 |
| | Acinetobacter baumannii LAC-4 | RR41_RS15505 | | NADH-quinone oxidoreductase subunit B | no data | 21 | 42 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS05515 | | NADH-quinone oxidoreductase subunit B | no data | 20 | 58 |