| WP_011407013.1 | Methanosphaera stadtmanae | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_011416040.1 | Syntrophus aciditrophicus | [NiFe] Group 3b | Deltaproteobacteria | Syntrophobacterales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_011417004.1 | Syntrophus aciditrophicus | [FeFe] Group A3 | Deltaproteobacteria | Syntrophobacterales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_011419537.1 | Anaeromyxobacter dehalogenans | [NiFe] Group 1c | Deltaproteobacteria | Myxococcales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, TM subunit |
| WP_011438850.1 | Frankia sp. CcI3 | [NiFe] Group 3b | Actinobacteria | Actinomycetales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_011448732.1 | Methanospirillum hungatei | [NiFe] Group 4e | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_011449071.1 | Methanospirillum hungatei | [NiFe] Group 4h | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_011449294.1 | Methanospirillum hungatei | [NiFe] Group 3a | Euryarchaeota | Methanomicrobiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_011449544.1 | Methanospirillum hungatei | [NiFe] Group 4d | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_011466117.1 | Rhodoferax ferrireducens | [NiFe] Group 3d | Betaproteobacteria | Burkholderiales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_011466351.1 | Rhodoferax ferrireducens | [NiFe] Group 1c | Betaproteobacteria | Burkholderiales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, TM subunit |
| WP_011466381.1 | Rhodoferax ferrireducens | [NiFe] Group 2b | Betaproteobacteria | Burkholderiales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
| WP_011474902.1 | Rhodopseudomonas palustris | [NiFe] Group 4c | Alphaproteobacteria | Rhizobiales | Evolving | Sensitive | 7 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein, polyferredoxin |
| WP_011474970.1 | Rhodopseudomonas palustris | [NiFe] Group 4a | Alphaproteobacteria | Rhizobiales | Evolving | Sensitive | 6 or 9 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, two [FeS] proteins, (three antiporter subunits) |
| WP_011493687.1 | Burkholderia xenovorans | [NiFe] Group 3d | Betaproteobacteria | Burkholderiales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_011516064.1 | Cupriavidus metallidurans | [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_011516268.1 | Cupriavidus metallidurans | [NiFe] Group 3d | Betaproteobacteria | Burkholderiales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_011525039.1 | Koribacter versatilis | [NiFe] Group 1c | Acidobacteria | Unclassified | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, TM subunit |
| WP_011526524.1 | Lawsonia intracellularis | [NiFe] Group 1d | Deltaproteobacteria | Desulfovibrionales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_011536525.1 | Sphingopyxis alaskensis | [NiFe] Group 2a | Alphaproteobacteria | Sphingomonadales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_011577655.1 | Helicobacter acinonychis | [NiFe] Group 1b | Epsilonproteobacteria | Campylobacterales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome |
| WP_011591170.1 | Clostridium perfringens | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_011591981.1 | Clostridium perfringens | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_011593109.1 | Clostridium perfringens | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_011593255.1 | Clostridium perfringens | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_011593368.1 | Rhodococcus jostii | [NiFe] Group 3b | Actinobacteria | Actinomycetales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_011596968.1 | Rhodococcus jostii | [NiFe] Group 1h | Actinobacteria | Actinomycetales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_011603008.1 | Frankia alni | [NiFe] Group 2a | Actinobacteria | Actinomycetales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_011603554.1 | Frankia alni | [NiFe] Group 1h | Actinobacteria | Actinomycetales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_011612815.1 | Trichodesmium erythraeum | [NiFe] Group 2a | Cyanobacteria | Oscillatoriales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_011622592.1 | Shewanella sp. MR-4 | [NiFe] Group 1b | Gammaproteobacteria | Alteromonadales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome |
| WP_011623989.1 | Shewanella sp. MR-4 | [FeFe] Group A1 | Gammaproteobacteria | Alteromonadales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | Small subunit, cytochrome b |
| WP_011629746.1 | Alkalilimnicola ehrlichii | [NiFe] Group 2b | Gammaproteobacteria | Chromatiales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
| WP_011629764.1 | Alkalilimnicola ehrlichii | [NiFe] Group 1d | Gammaproteobacteria | Chromatiales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
| WP_011637560.1 | Shewanella frigidimarina | [NiFe] Group 1b | Gammaproteobacteria | Alteromonadales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome |
| WP_011640436.1 | Syntrophomonas wolfei | [FeFe] Group A3 | Firmicutes | Clostridiales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_011640458.1 | Syntrophomonas wolfei | [FeFe] Group C2 | Firmicutes | Clostridiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with histidine kinase |
| WP_011641315.1 | Syntrophomonas wolfei | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters | Small subunit, cytochrome b |
| WP_011641809.1 | Syntrophomonas wolfei | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_011662668.1 | Rhodopseudomonas palustris | [NiFe] Group 2b | Alphaproteobacteria | Rhizobiales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
| WP_011686721.1 | Solibacter usitatus | [NiFe] Group 3d | Acidobacteria | Solibacterales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_011688202.1 | Solibacter usitatus | [NiFe] Group 1h | Acidobacteria | Solibacterales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_011688559.1 | Solibacter usitatus | [NiFe] Group 1c | Acidobacteria | Solibacterales | Anaerobic Uptake | Sensitive | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, TM subunit |
| WP_011697714.1 | Syntrophobacter fumaroxidans | [FeFe] Group A3 | Deltaproteobacteria | Syntrophobacterales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_011697718.1 | Syntrophobacter fumaroxidans | [FeFe] Group A1 | Deltaproteobacteria | Syntrophobacterales | Evolving | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters | Small subunit |
| WP_011698648.1 | Syntrophobacter fumaroxidans | [NiFe] Group 3c | Deltaproteobacteria | Syntrophobacterales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_011698701.1 | Syntrophobacter fumaroxidans | [FeFe] Group C3 | Deltaproteobacteria | Desulfovibrionales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_011699072.1 | Syntrophobacter fumaroxidans | [NiFe] Group 3c | Deltaproteobacteria | Syntrophobacterales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_011699561.1 | Syntrophobacter fumaroxidans | [NiFe] Group 3d | Deltaproteobacteria | Syntrophobacterales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_011699790.1 | Syntrophobacter fumaroxidans | [NiFe] Group 1b | Deltaproteobacteria | Syntrophobacterales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome |