| WP_012857629.1 | Sulfurospirillum deleyianum | [NiFe] Group 4a | Epsilonproteobacteria | Campylobacterales | Evolving | Sensitive | 6 or 9 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, two [FeS] proteins, (three antiporter subunits) |
| WP_012860094.1 | Sebaldella termitidis | [FeFe] Group A3 | Fusobacteria | Fusobacteriales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_012862884.1 | Sebaldella termitidis | [FeFe] Group C3 | Fusobacteria | Fusobacteriales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012862886.1 | Sebaldella termitidis | [FeFe] Group B | Fusobacteria | Fusobacteriales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_012863017.1 | Sebaldella termitidis | [FeFe] Group A3 | Fusobacteria | Fusobacteriales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_012868906.1 | Thermanaerovibrio acidaminovorans | [FeFe] Group A3 | Synergistetes | Synergistales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_012872944.1 | Sphaerobacter thermophilus | [NiFe] Group 1h | Chloroflexi | Sphaerobacterales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_012890477.1 | Streptosporangium roseum | [NiFe] Group 1h | Actinobacteria | Actinomycetales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_012891383.1 | Streptosporangium roseum | [NiFe] Group 3b | Actinobacteria | Actinomycetales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_012896175.1 | Thermotoga naphthophila | [FeFe] Group A1 | Thermotogae | Thermotogales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_012899230.1 | Methanocella paludicola | [NiFe] Group 4e | Euryarchaeota | Methanocellales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_012899275.1 | Methanocella paludicola | [NiFe] Group 4e | Euryarchaeota | Methanocellales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_012901155.1 | Methanocella paludicola | [NiFe] Group 3a | Euryarchaeota | Methanocellales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_012901198.1 | Methanocella paludicola | [NiFe] Group 3a | Euryarchaeota | Methanocellales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_012901238.1 | Methanocella paludicola | [NiFe] Group 3c | Euryarchaeota | Methanocellales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_012901516.1 | Methanocella paludicola | [NiFe] Group 3c | Euryarchaeota | Methanocellales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_012901677.1 | Methanocella paludicola | [NiFe] Group 1k | Euryarchaeota | Methanocellales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_012907207.1 | Citrobacter rodentium | [NiFe] Group 4a | Gammaproteobacteria | Enterobacteriales | Evolving | Sensitive | 6 or 9 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, two [FeS] proteins, (three antiporter subunits) |
| WP_012907588.1 | Citrobacter rodentium | [NiFe] Group 1c | Gammaproteobacteria | Enterobacteriales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, TM subunit |
| WP_012928387.1 | Spirosoma linguale | [NiFe] Group 2a | Bacteroidetes | Cytophagales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_012934014.1 | Conexibacter woesei | [NiFe] Group 1h | Actinobacteria | Solirubrobacterales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_012938875.1 | Acidaminococcus fermentans | [FeFe] Group B | Firmicutes | Selenomonadales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_012939176.1 | Acidaminococcus fermentans | [FeFe] Group C1 | Firmicutes | Selenomonadales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Histidine kinase |
| WP_012939228.1 | Acidaminococcus fermentans | [FeFe] Group B | Firmicutes | Selenomonadales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_012939228.1 | Acidaminococcus fermentans | [FeFe] Group B | Firmicutes | Selenomonadales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_012939287.1 | Acidaminococcus fermentans | [FeFe] Group A2 | Firmicutes | Selenomonadales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_012940402.1 | Archaeoglobus profundus | [NiFe] Group 1j | Euryarchaeota | Archaeoglobales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_012955328.1 | Methanobrevibacter ruminantium | [Fe] | Euryarchaeota | Methanobacteriales | Bidirectional | Tolerant | 1 | Fe ion | None |
| WP_012956197.1 | Methanobrevibacter ruminantium | [NiFe] Group 4h | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_012956704.1 | Methanobrevibacter ruminantium | [NiFe] Group 3c | Euryarchaeota | Methanobacteriales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_012956799.1 | Methanobrevibacter ruminantium | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_012956862.1 | Methanobrevibacter ruminantium | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_012959609.1 | Bacillus pseudofirmus | [NiFe] Group 1a | Firmicutes | Bacillales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| 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_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_012963143.1 | Hydrogenobacter thermophilus | [NiFe] Group 3b | Aquificae | Aquificales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| 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_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_012965344.1 | Ferroglobus placidus | [NiFe] Group 1j | Euryarchaeota | Archaeoglobales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_012965352.1 | Ferroglobus placidus | [NiFe] Group 3c | Euryarchaeota | Archaeoglobales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_012969568.1 | Allochromatium vinosum | [NiFe] Group 4e | Gammaproteobacteria | Chromatiales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_012970030.1 | Allochromatium vinosum | [NiFe] Group 3b | Gammaproteobacteria | Chromatiales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_012971066.1 | Allochromatium vinosum | [NiFe] Group 3d | Gammaproteobacteria | Chromatiales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_012971230.1 | Allochromatium vinosum | [NiFe] Group 1e | Gammaproteobacteria | Chromatiales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_012976476.1 | Azospirillum lipoferum | [NiFe] Group 2b | Alphaproteobacteria | Rhodospiralles | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
| WP_012979819.1 | Methanocaldococcus sp. FS406-22 | [NiFe] Group 3c | Euryarchaeota | Methanococcales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_012980416.1 | Methanocaldococcus sp. FS406-22 | [NiFe] Group 3c | Euryarchaeota | Methanococcales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_012980540.1 | Methanocaldococcus sp. FS406-22 | [NiFe] Group 3a | Euryarchaeota | Methanococcales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_012980975.1 | Methanocaldococcus sp. FS406-22 | [Fe] | Euryarchaeota | Methanococcales | Bidirectional | Tolerant | 1 | Fe ion | None |
| WP_012981217.1 | Methanocaldococcus sp. FS406-22 | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |