| WP_011699072.1 | Syntrophobacter fumaroxidans | [NiFe] Group 3c | Deltaproteobacteria | Syntrophobacterales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_011700332.1 | Syntrophobacter fumaroxidans | [NiFe] Group 3c | Deltaproteobacteria | Syntrophobacterales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_028894885.1 | Syntrophorhabdus aromaticivorans | [NiFe] Group 3c | Deltaproteobacteria | Syntrophobacterales | Bifurcating | Sensitive | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Polyferredoxin, [FeS] protein |
| WP_014808238.1 | Desulfomonile tiedjei | [NiFe] Group 3d | Deltaproteobacteria | Syntrophobacterales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [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_009165839.1 | Pyramidobacter piscolens | [FeFe] Group A2 | Synergistetes | Synergistales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_006299828.1 | Aminomonas paucivorans | [FeFe] Group A3 | Synergistetes | Synergistales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_006584326.1 | Thermanaerovibrio velox | [FeFe] Group A3 | Synergistetes | Synergistales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_008521264.1 | Jonquetella anthropi | [FeFe] Group A3 | Synergistetes | Synergistales | Bifurcating | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_008708834.1 | Synergistes sp. 3_1_syn1 | [FeFe] Group A3 | Synergistetes | Synergistales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_008711190.1 | Synergistes sp. 3_1_syn1 | [FeFe] Group A3 | Synergistetes | Synergistales | 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_015556986.1 | Fretibacterium fastidiosum | [FeFe] Group A3 | Synergistetes | Synergistales | Bifurcating | Labile | 3 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin |
| WP_026368965.1 | Aminiphilus circumscriptus | [FeFe] Group A3 | Synergistetes | Synergistales | Bifurcating | Labile | 4 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH dehydrogenase, thioredoxin, thioredoxin |
| WP_008713427.1 | Synergistes sp. 3_1_syn1 | [FeFe] Group B | Synergistetes | Synergistales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_014163756.1 | Thermovirga lienii | [FeFe] Group C1 | Synergistetes | Synergistales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Histidine kinase |
| WP_005659983.1 | Dethiosulfovibrio peptidovorans | [FeFe] Group C3 | Synergistetes | Synergistales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_006301959.1 | Aminomonas paucivorans | [FeFe] Group C3 | Synergistetes | Synergistales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_008709061.1 | Synergistes sp. 3_1_syn1 | [FeFe] Group C3 | Synergistetes | Synergistales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_029165455.1 | Aminiphilus circumscriptus | [NiFe] Group 3d | Synergistetes | Synergistales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_013048933.1 | Aminobacterium colombiense | [NiFe] Group 3d | Synergistetes | Synergistales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_024821667.1 | Aminobacterium mobile | [NiFe] Group 3d | Synergistetes | Synergistales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_009200281.1 | Anaerobaculum hydrogeniformans | [NiFe] Group 3d | Synergistetes | Synergistales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_014807493.1 | Anaerobaculum mobile | [NiFe] Group 3d | Synergistetes | Synergistales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_005661842.1 | Dethiosulfovibrio peptidovorans | [NiFe] Group 3d | Synergistetes | Synergistales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_014163745.1 | Thermovirga lienii | [NiFe] Group 3d | Synergistetes | Synergistales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 1 x [4Fe4S] clusters | Diaphorase, [FeS] protein |
| WP_029166411.1 | Aminiphilus circumscriptus | [NiFe] Group 4d | Synergistetes | Synergistales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_013048648.1 | Aminobacterium colombiense | [NiFe] Group 4d | Synergistetes | Synergistales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_024821984.1 | Aminobacterium mobile | [NiFe] Group 4d | Synergistetes | Synergistales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_006301161.1 | Aminomonas paucivorans | [NiFe] Group 4d | Synergistetes | Synergistales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_009200527.1 | Anaerobaculum hydrogeniformans | [NiFe] Group 4d | Synergistetes | Synergistales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_014807277.1 | Anaerobaculum mobile | [NiFe] Group 4d | Synergistetes | Synergistales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_005662523.1 | Dethiosulfovibrio peptidovorans | [NiFe] Group 4d | Synergistetes | Synergistales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_009164181.1 | Pyramidobacter piscolens | [NiFe] Group 4d | Synergistetes | Synergistales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_014163350.1 | Thermovirga lienii | [NiFe] Group 4d | Synergistetes | Synergistales | Evolving | Sensitive | 13 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, two [FeS] proteins, seven MRP antiporter subunits, etc. |
| WP_014512387.1 | Sulfolobus islandicus | [NiFe] Group 1h | Crenarchaeota | Sulfolobales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_012020882.1 | Metallosphaera sedula | [NiFe] Group 2e | Crenarchaeota | Sulfolobales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_009070398.1 | Metallosphaera yellowstonensis | [NiFe] Group 2e | Crenarchaeota | Sulfolobales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_016729728.1 | Sulfolobus islandicus | [NiFe] Group 2e | Crenarchaeota | Sulfolobales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_048100359.1 | Acidianus copahuensis | [NiFe] Group 2e | Crenarchaeota | Sulfolobales | Aerobic Uptake | Tolerant | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_048100721.1 | Acidianus copahuensis | [NiFe] Group 1g | Crenarchaeota | Sulfolobales | Anaerobic Uptake | Unknown | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_048100713.1 | Acidianus copahuensis | [NiFe] Group 1g | Crenarchaeota | Sulfolobales | Anaerobic Uptake | Unknown | 4 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome b, [FeS] protein |
| WP_048100378.1 | Acidianus copahuensis | [NiFe] Group 1h | Crenarchaeota | Sulfolobales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein |
| WP_016875640.1 | Chlorogloeopsis fritschii | [NiFe] Group 2a | Cyanobacteria | Stigonematales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_016860569.1 | Fischerella muscicola | [NiFe] Group 2a | Cyanobacteria | Stigonematales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_026722320.1 | Fischerella sp. PCC 9431 | [NiFe] Group 2a | Cyanobacteria | Stigonematales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_026731079.1 | Fischerella sp. PCC 9605 | [NiFe] Group 2a | Cyanobacteria | Stigonematales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_017315132.1 | Mastigocladopsis repens | [NiFe] Group 2a | Cyanobacteria | Stigonematales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_027846705.1 | Mastigocoleus testarum | [NiFe] Group 2a | Cyanobacteria | Stigonematales | Aerobic Uptake | Tolerant | 5 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | [FeS] protein, hypothetical proteins |
| WP_027844918.1 | Mastigocoleus testarum | [NiFe] Group 3b | Cyanobacteria | Stigonematales | Bidirectional | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Diaphorase, [FeS] protein |