| WP_008286892.1 | Hydrogenivirga sp. 128-5-R1-1 | [NiFe] Group 1d | Aquificae | Aquificales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_012963651.1 | Hydrogenobacter thermophilus | [NiFe] Group 1d | Aquificae | Aquificales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_012513102.1 | Hydrogenobaculum sp. Y04AAS1 | [NiFe] Group 1d | Aquificae | Aquificales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_012992146.1 | Thermocrinis albus | [NiFe] Group 1d | Aquificae | Aquificales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_025306136.1 | Thermocrinis ruber | [NiFe] Group 1d | Aquificae | Aquificales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_010880593.1 | Aquifex aeolicus | [NiFe] Group 1e | Aquificae | Aquificales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_008287448.1 | Hydrogenivirga sp. 128-5-R1-1 | [NiFe] Group 1e | Aquificae | Aquificales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_012962745.1 | Hydrogenobacter thermophilus | [NiFe] Group 1e | Aquificae | Aquificales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_012992451.1 | Thermocrinis albus | [NiFe] Group 1e | Aquificae | Aquificales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_012963102.1 | Hydrogenobacter thermophilus | [NiFe] Group 2a | Aquificae | Aquificales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_012992443.1 | Thermocrinis albus | [NiFe] Group 2a | Aquificae | Aquificales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_010880487.1 | Aquifex aeolicus | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_008286852.1 | Hydrogenivirga sp. 128-5-R1-1 | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_012963643.1 | Hydrogenobacter thermophilus | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_012514441.1 | Hydrogenobaculum sp. Y04AAS1 | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_012676217.1 | Persephonella marina | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_029520218.1 | Persephonella sp. IF05-L8 | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_029523037.1 | Persephonella sp. KM09-Lau-8 | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_012673603.1 | Sulfurihydrogenibium azorense | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_028949944.1 | Sulfurihydrogenibium subterraneum | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_012992449.1 | Thermocrinis albus | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_025306143.1 | Thermocrinis ruber | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_008286766.1 | Hydrogenivirga sp. 128-5-R1-1 | [NiFe] Group 3b | Aquificae | Aquificales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_012963143.1 | Hydrogenobacter thermophilus | [NiFe] Group 3b | Aquificae | Aquificales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_012676609.1 | Persephonella marina | [NiFe] Group 3b | Aquificae | Aquificales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_012674555.1 | Sulfurihydrogenibium azorense | [NiFe] Group 3b | Aquificae | Aquificales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_028949840.1 | Sulfurihydrogenibium subterraneum | [NiFe] Group 3b | Aquificae | Aquificales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_010878877.1 | Archaeoglobus fulgidus | [NiFe] Group 1j | Euryarchaeota | Archaeoglobales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_012940402.1 | Archaeoglobus profundus | [NiFe] Group 1j | Euryarchaeota | Archaeoglobales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_015591799.1 | Archaeoglobus sulfaticallidus | [NiFe] Group 1j | Euryarchaeota | Archaeoglobales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_013682857.1 | Archaeoglobus veneficus | [NiFe] Group 1j | Euryarchaeota | Archaeoglobales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_012965344.1 | Ferroglobus placidus | [NiFe] Group 1j | Euryarchaeota | Archaeoglobales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_010878869.1 | Archaeoglobus fulgidus | [NiFe] Group 3c | Euryarchaeota | Archaeoglobales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_015590675.1 | Archaeoglobus sulfaticallidus | [NiFe] Group 3c | Euryarchaeota | Archaeoglobales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_013684228.1 | Archaeoglobus veneficus | [NiFe] Group 3c | Euryarchaeota | Archaeoglobales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_012965352.1 | Ferroglobus placidus | [NiFe] Group 3c | Euryarchaeota | Archaeoglobales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_016314690.1 | Paenibacillus barengoltzii | [FeFe] Group A3 | Firmicutes | Bacillales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_010345843.1 | Paenibacillus peoriae | [FeFe] Group A4 | Firmicutes | Bacillales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | FeS protein, FeS protein |
| WP_014282026.1 | Paenibacillus terrae | [FeFe] Group A4 | Firmicutes | Bacillales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | FeS protein, FeS protein |
| WP_016822145.1 | Paenibacillus polymyxa | [FeFe] Group A4 | Firmicutes | Bacillales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | FeS protein, FeS protein |
| WP_018884458.1 | Paenibacillus massiliensis | [FeFe] Group A4 | Firmicutes | Bacillales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | FeS protein, FeS protein |
| WP_025688954.1 | Paenibacillus zanthoxyli | [FeFe] Group A4 | Firmicutes | Bacillales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | FeS protein, FeS protein |
| WP_025700928.1 | Paenibacillus forsythiae | [FeFe] Group A4 | Firmicutes | Bacillales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | FeS protein, FeS protein |
| WP_028591227.1 | Paenibacillus panacisoli | [FeFe] Group A4 | Firmicutes | Bacillales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | FeS protein, FeS protein |
| WP_026688533.1 | Bacillus aurantiacus | [NiFe] Group 1a | Firmicutes | Bacillales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_012959609.1 | Bacillus pseudofirmus | [NiFe] Group 1a | Firmicutes | Bacillales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_019123746.1 | Brevibacillus massiliensis | [NiFe] Group 1a | Firmicutes | Bacillales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_025219113.1 | Lysinibacillus sp. GY32 | [NiFe] Group 1a | Firmicutes | Bacillales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_024363302.1 | Lysinibacillus sphaericus | [NiFe] Group 1a | Firmicutes | Bacillales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_025694942.1 | Paenibacillus durus | [NiFe] Group 1a | Firmicutes | Bacillales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |