| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Methanococcus maripaludis S2 | MMP_RS08335 | | NADH-quinone oxidoreductase subunit B family protein | strong | 100 | 100 |
| o | Methanococcus maripaludis JJ | MMJJ_RS06035 | | NADH-quinone oxidoreductase subunit B family protein | strong | 99 | 100 |
| | Methanococcus maripaludis JJ | MMJJ_RS06845 | | NADH-quinone oxidoreductase subunit B family protein | no data | 54 | 99 |
| | Methanococcus maripaludis S2 | MMP_RS07515 | | NADH-quinone oxidoreductase subunit B family protein | no data | 54 | 99 |
| | Rhodospirillum rubrum S1H | Rru_A0321 | | NADH dehydrogenase (ubiquinone), 20 kDa subunit (NCBI) | insig. | 40 | 91 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0432 | | Ech hydrogenase, subunit EchC, putative (TIGR) | sig. | 47 | 92 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1520 | | NADH ubiquinone oxidoreductase 20 kDa subunit (RefSeq) | no data | 46 | 93 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_3192 | | NADH ubiquinone oxidoreductase 20 kDa subunit (RefSeq) | no data | 42 | 95 |
| | Rhodospirillum rubrum S1H | Rru_A1422 | | NADH ubiquinone oxidoreductase, 20 kDa subunit (NCBI) | insig. | 42 | 93 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2288 | | hydrogenase, CooL subunit, putative (TIGR) | no data | 38 | 95 |
| | Azospirillum sp. SherDot2 | MPMX19_03508 | | Formate hydrogenlyase subunit 7 | insig. | 38 | 96 |
| | Dickeya dianthicola 67-19 | HGI48_RS07310 | | NADH-quinone oxidoreductase subunit B family protein | insig. | 37 | 96 |
| | Dickeya dadantii 3937 | DDA3937_RS07435 | | NADH-quinone oxidoreductase subunit B family protein | insig. | 37 | 96 |
| | Dickeya dianthicola ME23 | DZA65_RS07820 | | NADH-quinone oxidoreductase subunit B family protein | insig. | 37 | 96 |
| | Rahnella sp. WP5 | EX31_RS19930 | | NADH-quinone oxidoreductase subunit B family protein | insig. | 38 | 93 |
| | Escherichia coli BL21 | ECD_02569 | | hydrogenase 3 and formate hydrogenase complex, HycG subunit | insig. | 37 | 96 |
| | Escherichia fergusonii Becca | EFB2_01204 | | Formate hydrogenlyase subunit 7 | cofit | 37 | 96 |
| | Escherichia coli ECOR27 | NOLOHH_12445 | hycG | formate hydrogenlyase subunit HycG | insig. | 37 | 96 |
| | Escherichia coli ECOR38 | HEPCGN_19790 | hycG | formate hydrogenlyase subunit HycG | insig. | 37 | 96 |
| | Escherichia coli ECRC100 | OKFHMN_20600 | hycG | formate hydrogenlyase subunit HycG | cofit | 37 | 96 |
| | Escherichia coli ECRC101 | MCAODC_11125 | hycG | formate hydrogenlyase subunit HycG | insig. | 37 | 96 |
| | Escherichia coli ECRC102 | NIAGMN_18370 | hycG | formate hydrogenlyase subunit HycG | insig. | 37 | 96 |
| | Escherichia coli ECRC62 | BNILDI_10995 | hycG | formate hydrogenlyase subunit HycG | insig. | 37 | 96 |
| | Escherichia coli ECRC98 | JDDGAC_24265 | hycG | formate hydrogenlyase subunit HycG | insig. | 37 | 96 |
| | Escherichia coli ECRC99 | KEDOAH_07535 | hycG | formate hydrogenlyase subunit HycG | no data | 37 | 96 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01015 | | Formate hydrogenlyase subunit 7 | insig. | 37 | 96 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS15195 | | formate hydrogenlyase subunit HycG | insig. | 37 | 96 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_2810 | | Ni,Fe-hydrogenase III small subunit | insig. | 37 | 96 |
| | Escherichia coli BW25113 | b2719 | hycG | hydrogenase 3 and formate hydrogenase complex, HycG subunit (NCBI) | insig. | 37 | 96 |
| | Klebsiella michiganensis M5al | BWI76_RS22310 | | hydrogenase 3 small subunit | insig. | 37 | 96 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_02980 | | formate hydrogenlyase | insig. | 37 | 96 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4712 | | Formate hydrogenlyase subunit 7 | insig. | 37 | 91 |
| | Enterobacter sp. TBS_079 | MPMX20_03604 | | Formate hydrogenlyase subunit 7 | insig. | 37 | 91 |
| | Xanthobacter sp. DMC5 | GFF2062 | | NAD(P)H-quinone oxidoreductase subunit K, chloroplastic | insig. | 42 | 84 |
| | Serratia liquefaciens MT49 | IAI46_12510 | | NADH-quinone oxidoreductase subunit B family protein | insig. | 37 | 91 |
| | Sinorhizobium meliloti 1021 | SMa1532 | | NADH dehydrogenase subunit B | insig. | 39 | 86 |
| | Escherichia coli ECOR38 | HEPCGN_21030 | hyfI | hydrogenase 4 catalytic subunit HyfI | insig. | 36 | 91 |
| | Escherichia coli ECRC100 | OKFHMN_21860 | hyfI | hydrogenase 4 catalytic subunit HyfI | cofit | 36 | 91 |
| | Escherichia coli ECRC101 | MCAODC_12390 | hyfI | hydrogenase 4 catalytic subunit HyfI | insig. | 36 | 91 |
| | Escherichia coli ECRC102 | NIAGMN_19630 | hyfI | hydrogenase 4 catalytic subunit HyfI | cofit | 36 | 91 |
| | Escherichia coli ECRC62 | BNILDI_12320 | hyfI | hydrogenase 4 catalytic subunit HyfI | insig. | 36 | 91 |
| | Escherichia coli ECRC98 | JDDGAC_25805 | hyfI | hydrogenase 4 catalytic subunit HyfI | insig. | 36 | 91 |
| | Escherichia coli ECRC99 | KEDOAH_06360 | hyfI | hydrogenase 4 catalytic subunit HyfI | no data | 36 | 91 |
| | Escherichia coli BW25113 | b2489 | hyfI | hydrogenase 4, Fe-S subunit (NCBI) | insig. | 36 | 91 |
| | Escherichia coli BL21 | ECD_02381 | | hydrogenase 4, Fe-S subunit | insig. | 36 | 91 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01237 | | Formate hydrogenlyase subunit 7 | insig. | 36 | 91 |
| | Azospirillum brasilense Sp245 | AZOBR_RS14505 | | hydrogenase | insig. | 39 | 83 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS01045 | | NADH-quinone oxidoreductase subunit NuoB | insig. | 36 | 90 |
| | Synechococcus elongatus PCC 7942 | Synpcc7942_1181 | ndhK | NADH dehydrogenase subunit B | no data | 40 | 90 |
| | Synechocystis sp000284455 PCC 6803 | SGL_RS10730 | | photosynthetic/respiratory NAD(P)H-quinone oxidoreductase subunit K | no data | 37 | 90 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS17205 | | 4Fe-4S binding protein | insig. | 39 | 88 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS17730 | | 4Fe-4S binding protein | insig. | 39 | 88 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c10380 | | NADH-quinone oxidoreductase subunit B | no data | 35 | 95 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1308 | | NADH-quinone oxidoreductase, B subunit (RefSeq) | no data | 34 | 95 |
| | Synechocystis sp000284455 PCC 6803 | SGL_RS01280 | | NADH-quinone oxidoreductase subunit NuoB | insig. | 39 | 85 |
| | Rhodopseudomonas palustris CGA009 | TX73_022085 | | NADH-quinone oxidoreductase subunit B | strong | 36 | 93 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS11735 | | NADH-quinone oxidoreductase subunit NuoB | insig. | 36 | 92 |
| | Azospirillum brasilense Sp245 | AZOBR_RS07170 | | NADH dehydrogenase | no data | 35 | 88 |
| | Mycobacterium tuberculosis H37Rv | Rv3146 | | Probable NADH dehydrogenase I (chain B) NuoB (NADH-ubiquinone oxidoreductase chain B) | strong | 37 | 86 |
| | Azospirillum sp. SherDot2 | MPMX19_01745 | | NADH-quinone oxidoreductase subunit B | no data | 35 | 88 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_0126 | | NADH-quinone oxidoreductase, B subunit | strong | 34 | 97 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS00900 | | NADH-quinone oxidoreductase subunit B | no data | 36 | 89 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS01125 | | NADH-quinone oxidoreductase subunit B | no data | 36 | 89 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_05770 | nuoB | NADH-quinone oxidoreductase subunit B | no data | 36 | 89 |
| | Sinorhizobium meliloti 1021 | SMc01913 | | NADH dehydrogenase subunit B | no data | 33 | 96 |
| | Rhodopseudomonas palustris CGA009 | TX73_015290 | | NADH-quinone oxidoreductase subunit B | no data | 34 | 89 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS17170 | | NADH-quinone oxidoreductase subunit B | no data | 38 | 79 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_07610 | hycG | formate hydrogenlyase | insig. | 35 | 92 |
| | Xanthobacter sp. DMC5 | GFF1249 | | NADH-quinone oxidoreductase subunit B | no data | 34 | 89 |
| | Dechlorosoma suillum PS | Dsui_3049 | | NADH-quinone oxidoreductase, B subunit | no data | 35 | 86 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS23535 | | NADH dehydrogenase | no data | 38 | 79 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_18250 | | NADH-quinone oxidoreductase subunit B | strong | 38 | 79 |
| | Bosea sp. OAE506 | ABIE41_RS17945 | | NADH-quinone oxidoreductase subunit B | no data | 33 | 89 |
| | Agrobacterium fabrum C58 | Atu1269 | | NADH ubiqionone oxidoreductase chain B | no data | 35 | 82 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS08940 | | NADH-quinone oxidoreductase subunit B | no data | 35 | 89 |
| | Rhizobium sp. OAE497 | ABIE40_RS07180 | | NADH-quinone oxidoreductase subunit B | no data | 31 | 96 |
| | Rhodospirillum rubrum S1H | Rru_A1556 | | NADH dehydrogenase (ubiquinone), 20 kDa subunit (NCBI) | no data | 33 | 86 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_14205 | | NADH-quinone oxidoreductase subunit B | no data | 34 | 92 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS09305 | | NADH-quinone oxidoreductase subunit B | no data | 34 | 97 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS17505 | | formate hydrogenlyase | cofit | 35 | 92 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS17280 | | formate hydrogenlyase | cofit | 35 | 92 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS08745 | | NADH-quinone oxidoreductase subunit B | no data | 34 | 86 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS06415 | | NADH-quinone oxidoreductase subunit B | no data | 31 | 89 |
| | Dechlorosoma suillum PS | Dsui_2227 | | NADH-quinone oxidoreductase, B subunit | no data | 34 | 79 |
| | Lysobacter sp. OAE881 | ABIE51_RS08315 | | NADH-quinone oxidoreductase subunit B | no data | 34 | 91 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1594 | | NADH-quinone oxidoreductase, B subunit (RefSeq) | insig. | 35 | 86 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS06110 | | NADH-quinone oxidoreductase subunit B family protein | no data | 34 | 89 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS14340 | | NADH dehydrogenase subunit B | no data | 35 | 86 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS14875 | | NADH-quinone oxidoreductase subunit B family protein | no data | 35 | 86 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS02970 | | NADH-quinone oxidoreductase subunit B | no data | 35 | 86 |
| | Ralstonia solanacearum GMI1000 | RS_RS10340 | | NADH-quinone oxidoreductase subunit B | no data | 35 | 86 |
| | Ralstonia solanacearum UW163 | UW163_RS10755 | | NADH-quinone oxidoreductase subunit B | no data | 35 | 86 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.1984.1 | | NADH-ubiquinone oxidoreductase chain B (EC 1.6.5.3) | no data | 33 | 90 |
| | Caulobacter crescentus NA1000 | CCNA_02032 | | NADH-quinone oxidoreductase chain B | no data | 33 | 89 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_02032 | | NADH-quinone oxidoreductase chain B | no data | 33 | 89 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0711 | | NADH-quinone oxidoreductase, B subunit | no data | 32 | 97 |
| | Sphingobium sp. HT1-2 | GFF2118 | | NADH-ubiquinone oxidoreductase chain B (EC 1.6.5.3) | no data | 32 | 97 |
| | Methylophilus sp. DMC18 | GFF941 | | NADH-quinone oxidoreductase subunit B | no data | 34 | 86 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS14005 | | NADH-quinone oxidoreductase subunit NuoB | no data | 33 | 86 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS08825 | | NADH dehydrogenase subunit B | no data | 33 | 86 |