| WP_013607980.1 | Sphaerochaeta globosa | [FeFe] Group A3 | Spirochaetes | Spirochaetales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_013608539.1 | Sphaerochaeta globosa | [FeFe] Group B | Spirochaetes | Spirochaetales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_013608542.1 | Sphaerochaeta globosa | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013610540.1 | Odoribacter splanchnicus | [FeFe] Group A3 | Bacteroidetes | Bacteroidales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_013610546.1 | Odoribacter splanchnicus | [FeFe] Group C1 | Bacteroidetes | Bacteroidales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Histidine kinase |
| WP_013613424.1 | Odoribacter splanchnicus | [FeFe] Group B | Bacteroidetes | Bacteroidales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_013613427.1 | Odoribacter splanchnicus | [FeFe] Group C3 | Bacteroidetes | Bacteroidales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013623369.1 | Syntrophobotulus glycolicus | [NiFe] Group 4f | Firmicutes | Clostridiales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, two antiporter subunits |
| WP_013623612.1 | Syntrophobotulus glycolicus | [FeFe] Group C2 | Firmicutes | Clostridiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with methyl-accepting chemotaxis protein |
| WP_013625216.1 | Syntrophobotulus glycolicus | [NiFe] Group 4e | Firmicutes | Clostridiales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_013625341.1 | Syntrophobotulus glycolicus | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | NADH dehydrogenase, thioredoxin |
| WP_013625342.1 | Syntrophobotulus glycolicus | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | NADH dehydrogenase, thioredoxin |
| WP_013626003.1 | Syntrophobotulus glycolicus | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_013637757.1 | Desulfurobacterium thermolithotrophum | [FeFe] Group A3 | Aquificae | Desulfurobacteriales | Bifurcating | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | NADH dehydrogenase, thioredoxin |
| WP_013637988.1 | Desulfurobacterium thermolithotrophum | [NiFe] Group 3c | Aquificae | Desulfurobacteriales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_013638061.1 | Desulfurobacterium thermolithotrophum | [NiFe] Group 3a | Aquificae | Desulfurobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_013638066.1 | Desulfurobacterium thermolithotrophum | [NiFe] Group 1c | Aquificae | Desulfurobacteriales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, TM subunit |
| WP_013638341.1 | Desulfurobacterium thermolithotrophum | [NiFe] Group 4e | Aquificae | Desulfurobacteriales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_013638346.1 | Desulfurobacterium thermolithotrophum | [NiFe] Group 3b | Aquificae | Desulfurobacteriales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_013643821.1 | Methanobacterium lacus | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_013643876.1 | Methanobacterium lacus | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_013643973.1 | Methanobacterium lacus | [NiFe] Group 3c | Euryarchaeota | Methanobacteriales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_013644241.1 | Methanobacterium lacus | [NiFe] Group 3c | Euryarchaeota | Methanobacteriales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_013644869.1 | Methanobacterium lacus | [NiFe] Group 4h | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_013650389.1 | Yersinia enterocolitica | [NiFe] Group 1c | Gammaproteobacteria | Enterobacteriales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, TM subunit |
| WP_013656601.1 | Cellulosilyticum lentocellum | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_013657049.1 | Cellulosilyticum lentocellum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_013657393.1 | Cellulosilyticum lentocellum | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_013657394.1 | Cellulosilyticum lentocellum | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_013657399.1 | Cellulosilyticum lentocellum | [FeFe] Group C1 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Histidine kinase |
| WP_013678342.1 | Pseudonocardia dioxanivorans | [NiFe] Group 2a | Actinobacteria | Actinomycetales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_013680997.1 | Thermoproteus uzoniensis | [NiFe] Group 1g | Crenarchaeota | Thermoproteales | Anaerobic Uptake | Unknown | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_013682101.1 | Hippea maritima | [NiFe] Group 1b | Deltaproteobacteria | Desulfurellales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome |
| WP_013682857.1 | Archaeoglobus veneficus | [NiFe] Group 1j | Euryarchaeota | Archaeoglobales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_013684228.1 | Archaeoglobus veneficus | [NiFe] Group 3c | Euryarchaeota | Archaeoglobales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_013700376.1 | Treponema succinifaciens | [FeFe] Group B | Spirochaetes | Spirochaetales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_013701174.1 | Treponema succinifaciens | [FeFe] Group C2 | Spirochaetes | Spirochaetales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with methyl-accepting chemotaxis protein |
| WP_013706649.1 | Desulfobacca acetoxidans | [NiFe] Group 3b | Deltaproteobacteria | Syntrophobacterales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_013708694.1 | Coriobacterium glomerans | [FeFe] Group A2 | Actinobacteria | Coriobacteriales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_013708979.1 | Coriobacterium glomerans | [FeFe] Group B | Actinobacteria | Coriobacteriales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_013738980.1 | Sphaerochaeta coccoides | [FeFe] Group A2 | Spirochaetes | Spirochaetales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_013747503.1 | Pyrococcus sp. NA2 | [NiFe] Group 4d | Euryarchaeota | Thermococcales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_013749017.1 | Pyrococcus sp. NA2 | [NiFe] Group 3b | Euryarchaeota | Thermococcales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_013749130.1 | Pyrococcus sp. NA2 | [NiFe] Group 3b | Euryarchaeota | Thermococcales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_013755279.1 | Glaciecola sp. 4H-3-7+YE-5 | [NiFe] Group 1e | Gammaproteobacteria | Alteromonadales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_013755712.1 | Thermodesulfobium narugense | [NiFe] Group 1a | Firmicutes | Thermoanaerobacterales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_013756005.1 | Thermodesulfobium narugense | [NiFe] Group 4g | Firmicutes | Clostridiales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_013756665.1 | Thermodesulfobium narugense | [NiFe] Group 3c | Firmicutes | Thermoanaerobacterales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_013756843.1 | Thermodesulfobium narugense | [FeFe] Group A3 | Firmicutes | Thermoanaerobacterales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_013756852.1 | Thermodesulfobium narugense | [FeFe] Group A1 | Firmicutes | Thermoanaerobacterales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | Small subunit, cytochrome b |