| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Rhodospirillum rubrum S1H | Rru_A0312 | | 4Fe-4S ferredoxin, iron-sulfur binding (NCBI) | no data | 100 | 100 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS14705 | | 4Fe-4S dicluster domain-containing protein | cofit | 44 | 91 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS08495 | | hypothetical protein | cofit | 36 | 71 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_3838 | | Fe-S-cluster-containing hydrogenase components 2 | insig. | 40 | 83 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_10095 | | 4Fe-4S ferredoxin | insig. | 35 | 72 |
| | Pseudomonas stutzeri RCH2 | Psest_4105 | | formate dehydrogenase, beta subunit, Fe-S containing | insig. | 33 | 99 |
| | Variovorax sp. SCN45 | GFF3158 | | Sulfite dehydrogenase (quinone), iron-sulfur subunit SoeB (EC 1.8.5.6) | insig. | 36 | 64 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1237 | | 4Fe-4S ferredoxin iron-sulfur binding domain protein (RefSeq) | insig. | 32 | 91 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c28890 | | polysulfide reductase chain B-like protein | insig. | 36 | 73 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_00131 | | Hydrogenase-4 component A | insig. | 39 | 71 |
| | Escherichia coli ECRC100 | OKFHMN_15905 | hycB | electron transporter | cofit | 39 | 71 |
| | Escherichia coli ECRC101 | MCAODC_06420 | hycB | electron transporter | insig. | 39 | 71 |
| | Escherichia coli ECRC102 | NIAGMN_13665 | hycB | electron transporter | cofit | 39 | 71 |
| | Escherichia coli ECRC62 | BNILDI_03695 | hycB | electron transporter | insig. | 39 | 71 |
| | Escherichia coli ECRC98 | JDDGAC_19535 | hycB | electron transporter | insig. | 39 | 71 |
| | Escherichia coli ECRC99 | KEDOAH_12245 | hycB | electron transporter | no data | 39 | 71 |
| | Escherichia coli BL21 | ECD_03425 | | putative hydrogenase, 4Fe-4S ferredoxin-type component | insig. | 39 | 71 |
| | Escherichia coli BW25113 | b3573 | yiaI | predicted hydrogenase, 4Fe-4S ferredoxin-type component (NCBI) | sig. | 39 | 71 |
| | Escherichia coli ECOR27 | NOLOHH_07850 | hycB | electron transporter | insig. | 38 | 71 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS18420 | | formate dehydrogenase subunit beta | insig. | 30 | 99 |
| | Dickeya dadantii 3937 | DDA3937_RS21410 | | formate-dependent uric acid utilization protein AegA | insig. | 37 | 77 |
| | Dechlorosoma suillum PS | Dsui_3011 | | Fe-S-cluster-containing hydrogenase subunit | no data | 35 | 85 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS20435 | | 4Fe-4S binding protein | insig. | 38 | 71 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS24535 | | ferredoxin | no data | 35 | 64 |
| | Escherichia coli ECOR38 | HEPCGN_14795 | hycB | electron transporter | insig. | 38 | 71 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF437 | | Electron transport protein HydN | insig. | 34 | 83 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS04510 | | formate dehydrogenase subunit beta | insig. | 32 | 77 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_29520 | | formate dehydrogenase subunit beta | strong | 30 | 86 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS09820 | fdxH;go_function=formate | formate dehydrogenase subunit beta | sig. | 33 | 69 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS52225 | fdxH;go_function=formate | formate dehydrogenase subunit beta | insig. | 33 | 69 |
| | Pseudomonas putida KT2440 | PP_0490 | | formate dehydrogenase-O, beta subunit | insig. | 32 | 77 |
| | Escherichia fergusonii Becca | EFB2_00234 | | Hydrogenase-4 component A | insig. | 38 | 71 |
| | Methanococcus maripaludis S2 | MMP_RS07720 | | 4Fe-4S binding protein | strong | 31 | 74 |
| | Xanthobacter sp. DMC5 | GFF4695 | | Formate dehydrogenase-O iron-sulfur subunit | insig. | 30 | 99 |
| | Pseudomonas sp. BP01 | JOY50_RS20250 | fdxH | formate dehydrogenase subunit beta | insig. | 33 | 69 |
| | Methanococcus maripaludis S2 | MMP_RS05070 | | 4Fe-4S dicluster domain-containing protein | strong | 38 | 67 |
| | Pseudomonas segetis P6 | ACVTMO_RS19970 | fdxH | formate dehydrogenase subunit beta | insig. | 31 | 88 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_07815 | | effector protein | insig. | 36 | 76 |
| | Dickeya dianthicola 67-19 | HGI48_RS21620 | | formate-dependent uric acid utilization protein AegA | insig. | 36 | 77 |
| | Dickeya dianthicola ME23 | DZA65_RS22605 | | formate-dependent uric acid utilization protein AegA | insig. | 36 | 77 |
| | Pseudomonas sp. DMC3 | GFF2834 | | Formate dehydrogenase-O iron-sulfur subunit | cofit | 32 | 77 |
| | Methanococcus maripaludis JJ | MMJJ_RS06635 | | 4Fe-4S binding protein | strong | 31 | 74 |
| | Shewanella loihica PV-4 | Shew_0060 | | 4Fe-4S ferredoxin iron-sulfur binding domain-containing protein (RefSeq) | cofit | 31 | 88 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_4948 | | Formate dehydrogenase O beta subunit (EC 1.2.1.2) | insig. | 32 | 77 |
| | Enterobacter sp. TBS_079 | MPMX20_03329 | | Ferredoxin--NADP reductase | insig. | 32 | 94 |
| | Dickeya dadantii 3937 | DDA3937_RS14250 | | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Dickeya dianthicola 67-19 | HGI48_RS14225 | | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Azospirillum brasilense Sp245 | AZOBR_RS20400 | | hydrogenase 2 protein HybA | insig. | 33 | 79 |
| | Klebsiella michiganensis M5al | BWI76_RS20850 | | oxidoreductase FeS-binding subunit | insig. | 33 | 100 |
| | Shewanella sp. ANA-3 | Shewana3_3917 | | 4Fe-4S ferredoxin iron-sulfur binding domain-containing protein (RefSeq) | cofit | 31 | 88 |
| | Dickeya dianthicola ME23 | DZA65_RS14900 | | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_24970 | | formate dehydrogenase | insig. | 32 | 77 |
| | Pseudomonas sp. SVBP6 | COO64_RS16010 | fdxH | formate dehydrogenase subunit beta | insig. | 32 | 77 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_3092 | | Formate dehydrogenase O beta subunit (EC 1.2.1.2) | insig. | 32 | 77 |
| | Shewanella oneidensis MR-1 | SO4510 | fdhB-1 | formate dehydrogenase, iron-sulfur subunit (NCBI ptt file) | cofit | 31 | 88 |
| | Escherichia coli ECOR38 | HEPCGN_18905 | ygfS | Putative electron transport protein YgfS | insig. | 28 | 98 |
| | Methanococcus maripaludis JJ | MMJJ_RS00065 | | 4Fe-4S dicluster domain-containing protein | strong | 37 | 67 |
| | Dickeya dianthicola ME23 | DZA65_RS04465 | | 4Fe-4S dicluster domain-containing protein | insig. | 32 | 61 |
| | Escherichia coli BL21 | ECD_02718 | | putative 4Fe-4S ferredoxin-type oxidoreductase subunit | insig. | 29 | 98 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_00830 | | Hydrogenase-4 component A | insig. | 29 | 98 |
| | Escherichia coli ECOR27 | NOLOHH_11545 | ygfS | Putative electron transport protein YgfS | insig. | 28 | 98 |
| | Escherichia coli ECRC62 | BNILDI_10070 | ygfS | Putative electron transport protein YgfS | insig. | 28 | 98 |
| | Escherichia coli BW25113 | b2886 | ygfS | putative oxidoreductase, Fe-S subunit (VIMSS) | insig. | 28 | 98 |
| | Dickeya dianthicola 67-19 | HGI48_RS04545 | | 4Fe-4S dicluster domain-containing protein | insig. | 32 | 61 |
| | Shewanella amazonensis SB2B | Sama_3612 | | formate dehydrogenase, iron-sulfur subunit (RefSeq) | strong | 31 | 85 |
| | Enterobacter sp. TBS_079 | MPMX20_00157 | | Iron-sulfur protein | insig. | 39 | 74 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_0193 | | glutamate synthase small subunit family protein, proteobacterial | insig. | 36 | 79 |
| | Escherichia fergusonii Becca | EFB2_01016 | | Hydrogenase-4 component A | insig. | 32 | 79 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS16075 | | 4Fe-4S dicluster domain-containing protein | insig. | 32 | 79 |
| | Dickeya dianthicola 67-19 | HGI48_RS14155 | | formate dehydrogenase subunit beta | cofit | 32 | 77 |
| | Dickeya dianthicola ME23 | DZA65_RS14825 | | formate dehydrogenase subunit beta | insig. | 32 | 77 |
| | Pectobacterium carotovorum WPP14 | HER17_RS17065 | | 4Fe-4S dicluster domain-containing protein | insig. | 31 | 61 |
| | Azospirillum sp. SherDot2 | MPMX19_00549 | | Formate dehydrogenase iron-sulfur subunit | insig. | 31 | 99 |
| | Sinorhizobium meliloti 1021 | SMa0005 | | formate dehydrogenase susbunit beta | insig. | 29 | 99 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS32435 | | formate dehydrogenase-N subunit beta | insig. | 29 | 77 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c27640 | | formate dehydrogenase iron-sulfur subunit | insig. | 28 | 87 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF1192 | | Formate dehydrogenase-O, iron-sulfur subunit (EC 1.2.1.2); Putative formate dehydrogenase iron-sulfur subunit (EC 1.2.1.2) | insig. | 39 | 69 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS16595 | | 4Fe-4S dicluster domain-containing protein | cofit | 32 | 85 |
| | Escherichia coli ECOR27 | NOLOHH_10785 | hybA | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Escherichia coli ECOR38 | HEPCGN_17870 | hybA | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Escherichia coli ECRC100 | OKFHMN_19010 | hybA | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Escherichia coli ECRC101 | MCAODC_09525 | hybA | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Escherichia coli ECRC102 | NIAGMN_16775 | hybA | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Escherichia coli ECRC62 | BNILDI_00730 | hybA | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Escherichia coli ECRC98 | JDDGAC_22645 | hybA | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Escherichia coli ECRC99 | KEDOAH_09135 | hybA | hydrogenase 2 operon protein HybA | no data | 31 | 74 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_00703 | | Formate dehydrogenase, nitrate-inducible, iron-sulfur subunit | insig. | 31 | 74 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS17260 | | hydrogenase 2 operon protein HybA | insig. | 31 | 74 |
| | Klebsiella michiganensis M5al | BWI76_RS27070 | | 4Fe-4S ferredoxin | insig. | 34 | 86 |
| | Shewanella loihica PV-4 | Shew_3157 | | 4Fe-4S ferredoxin iron-sulfur binding domain-containing protein (RefSeq) | insig. | 33 | 61 |
| | Shewanella amazonensis SB2B | Sama_2903 | | NrfC, Fe-S-cluster-containing hydrogenase component 1 (RefSeq) | insig. | 33 | 61 |
| | Shewanella sp. ANA-3 | Shewana3_3921 | | 4Fe-4S ferredoxin iron-sulfur binding domain-containing protein (RefSeq) | cofit | 33 | 91 |
| | Dickeya dadantii 3937 | DDA3937_RS14170 | | formate dehydrogenase subunit beta | cofit | 32 | 77 |
| | Escherichia coli BL21 | ECD_02872 | | hydrogenase 2 4Fe-4S ferredoxin-type component | insig. | 31 | 74 |
| | Escherichia fergusonii Becca | EFB2_00811 | | Formate dehydrogenase, nitrate-inducible, iron-sulfur subunit | cofit | 31 | 74 |
| | Escherichia coli BW25113 | b2996 | hybA | hydrogenase 2 4Fe-4S ferredoxin-type component (NCBI) | sig. | 31 | 74 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF3107 | | Fe-S-cluster-containing hydrogenase components 1 | insig. | 31 | 74 |
| | Dickeya dadantii 3937 | DDA3937_RS04585 | | 4Fe-4S dicluster domain-containing protein | insig. | 31 | 61 |
| | Shewanella oneidensis MR-1 | SO4514 | fdhB-2 | formate dehydrogenase, iron-sulfur subunit (NCBI ptt file) | insig. | 31 | 91 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4517 | | Anaerobic dimethyl sulfoxide reductase chain B (EC 1.8.5.3) | insig. | 30 | 80 |