| WP_014186363.1 | Desulfosporosinus orientis | [NiFe] Group 1d | Firmicutes | Clostridiales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_014186754.1 | Desulfosporosinus orientis | [FeFe] Group C2 | Firmicutes | Clostridiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with histidine kinase |
| WP_014187152.1 | Desulfosporosinus orientis | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | NADH dehydrogenase, thioredoxin |
| WP_014187542.1 | Desulfosporosinus orientis | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_014198378.1 | Azospirillum brasilense | [NiFe] Group 1c | Alphaproteobacteria | Rhodospirillales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, TM subunit |
| WP_014208491.1 | Mycobacterium rhodesiae | [NiFe] Group 3d | Actinobacteria | Actinomycetales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_014217548.1 | Niastella koreensis | [NiFe] Group 1d | Bacteroidetes | Sphingobacteriales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_014238024.1 | Azospira oryzae | [NiFe] Group 1c | Betaproteobacteria | Rhodocyclales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, TM subunit |
| WP_014238042.1 | Azospira oryzae | [NiFe] Group 3d | Betaproteobacteria | Rhodocyclales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_014249328.1 | Azospirillum lipoferum | [NiFe] Group 4a | Alphaproteobacteria | Rhodospirillales | Evolving | Sensitive | 6 or 9 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, two [FeS] proteins, (three antiporter subunits) |
| WP_014249365.1 | Azospirillum lipoferum | [NiFe] Group 1d | Alphaproteobacteria | Rhodospirillales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_014254247.1 | Clostridium clariflavum | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014254276.1 | Clostridium clariflavum | [NiFe] Group 4e | Firmicutes | Clostridiales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_014254572.1 | Ruminiclostridium clariflavum | [FeFe] Group C1 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Histidine kinase |
| WP_014254579.1 | Ruminiclostridium clariflavum | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_014256388.1 | Ruminiclostridium clariflavum | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_014261062.1 | Desulfovibrio africanus | [NiFe] Group 1b | Deltaproteobacteria | Desulfovibrionales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome |
| WP_014261065.1 | Desulfovibrio africanus | [NiFe] Group 1a | Deltaproteobacteria | Desulfovibrionales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014261748.1 | Filifactor alocis | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_014267363.1 | Granulicella mallensis | [NiFe] Group 1h | Acidobacteria | Acidobacteriales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_014270717.1 | Sphaerochaeta pleomorpha | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_014270720.1 | Sphaerochaeta pleomorpha | [FeFe] Group B | Spirochaetes | Spirochaetales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_014271080.1 | Sphaerochaeta pleomorpha | [FeFe] Group A3 | Spirochaetes | Spirochaetales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_014282026.1 | Paenibacillus terrae | [FeFe] Group A4 | Firmicutes | Bacillales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | FeS protein, FeS protein |
| WP_014292817.1 | Oceanimonas sp. GK1 | [NiFe] Group 3b | Gammaproteobacteria | Aeromonadales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_014296384.1 | Marinitoga piezophila | [FeFe] Group C3 | Thermotogae | Thermotogales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with methyl-accepting chemotaxis protein |
| WP_014296497.1 | Marinitoga piezophila | [FeFe] Group A3 | Thermotogae | Thermotogales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_014299406.1 | Bacteroides fragilis | [FeFe] Group B | Bacteroidetes | Bacteroidales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_014310124.1 | Corynebacterium diphtheriae | [NiFe] Group 1f | Actinobacteria | Actinomycetales | Anaerobic Uptake | Unknown | 3 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b |
| WP_014323623.1 | Desulfovibrio desulfuricans | [NiFe] Group 4e | Deltaproteobacteria | Desulfovibrionales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_014346469.1 | Pyrobaculum oguniense | [NiFe] Group 1g | Crenarchaeota | Thermoproteales | Anaerobic Uptake | Unknown | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_014353799.1 | Sulfobacillus acidophilus | [NiFe] Group 1b | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome |
| WP_014355220.1 | Acetobacterium woodii | [FeFe] Group A4 | Firmicutes | Clostridiales | Bifurcating | Labile | 6 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADP dehydrogenase, four FeS proteins |
| WP_014357048.1 | Acetobacterium woodii | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_014357055.1 | Acetobacterium woodii | [FeFe] Group C1 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Histidine kinase |
| WP_014376814.1 | Blastococcus saxobsidens | [NiFe] Group 1h | Actinobacteria | Actinomycetales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_014404721.1 | Methanocella conradii | [NiFe] Group 3c | Euryarchaeota | Methanocellales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_014405075.1 | Methanocella conradii | [NiFe] Group 1k | Euryarchaeota | Methanocellales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_014405402.1 | Methanocella conradii | [NiFe] Group 4e | Euryarchaeota | Methanocellales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_014405594.1 | Methanocella conradii | [NiFe] Group 3a | Euryarchaeota | Methanocellales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_014407035.1 | Methanocella conradii | [NiFe] Group 3c | Euryarchaeota | Methanocellales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_014413848.1 | Rhodospirillum photometricum | [FeFe] Group A3 | Alphaproteobacteria | Rhodospirillales | Bifurcating | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase |
| WP_014423937.1 | Selenomonas ruminantium | [FeFe] Group A1 | Firmicutes | Selenomonadales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | Small subunit, cytochrome b |
| WP_014425762.1 | Selenomonas ruminantium | [FeFe] Group A3 | Firmicutes | Selenomonadales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_014429772.1 | Rubrivivax gelatinosus | [NiFe] Group 1d | Betaproteobacteria | Burkholderiales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_014429792.1 | Rubrivivax gelatinosus | [NiFe] Group 2b | Betaproteobacteria | Burkholderiales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
| WP_014433201.1 | Caldilinea aerophila | [NiFe] Group 3b | Chloroflexi | Caldilineales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_014434113.1 | Caldilinea aerophila | [NiFe] Group 3d | Chloroflexi | Caldilineales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_014450582.1 | Leptospirillum ferrooxidans | [NiFe] Group 1d | Nitrospirae | Nitrospirales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_014450900.1 | Fervidobacterium pennivorans | [FeFe] Group A1 | Thermotogae | Thermotogales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |