| 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_012514441.1 | Hydrogenobaculum sp. Y04AAS1 | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_012676217.1 | Persephonella marina | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_029520218.1 | Persephonella sp. IF05-L8 | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_029523037.1 | Persephonella sp. KM09-Lau-8 | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_012673603.1 | Sulfurihydrogenibium azorense | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_028949944.1 | Sulfurihydrogenibium subterraneum | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_012992449.1 | Thermocrinis albus | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_025306143.1 | Thermocrinis ruber | [NiFe] Group 2d | Aquificae | Aquificales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_020848144.1 | Arcobacter butzleri | [NiFe] Group 2d | Epsilonproteobacteria | Campylobacterales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_013135162.1 | Arcobacter nitrofigilis | [NiFe] Group 2d | Epsilonproteobacteria | Campylobacterales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_013460910.1 | Sulfuricurvum kujiense | [NiFe] Group 2d | Epsilonproteobacteria | Campylobacterales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_015654358.1 | Sulfuricurvum sp. RIFRC-1 | [NiFe] Group 2d | Epsilonproteobacteria | Campylobacterales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_011373066.1 | Sulfurimonas denitrificans | [NiFe] Group 2d | Epsilonproteobacteria | Campylobacterales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_008339288.1 | Sulfurimonas gotlandica | [NiFe] Group 2d | Epsilonproteobacteria | Campylobacterales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_025344558.1 | Sulfurospirillum multivorans | [NiFe] Group 2d | Epsilonproteobacteria | Campylobacterales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_007473987.1 | Caminibacter mediatlanticus | [NiFe] Group 2d | Epsilonproteobacteria | Nautiliales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_024789023.1 | Lebetimonas sp. JH292 | [NiFe] Group 2d | Epsilonproteobacteria | Nautiliales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_024786773.1 | Lebetimonas sp. JH369 | [NiFe] Group 2d | Epsilonproteobacteria | Nautiliales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_012663437.1 | Nautilia profundicola | [NiFe] Group 2d | Epsilonproteobacteria | Nautiliales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| WP_013553042.1 | Nitratifractor salsuginis | [NiFe] Group 2d | Epsilonproteobacteria | Nautiliales | Anaerobic Uptake | Unknown | 2 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | None |
| 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_012036281.1 | Methanocella arvoryzae | [NiFe] Group 1k | Euryarchaeota | Methanocellales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_014405075.1 | Methanocella conradii | [NiFe] Group 1k | Euryarchaeota | Methanocellales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_012901677.1 | Methanocella paludicola | [NiFe] Group 1k | Euryarchaeota | Methanocellales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_023846630.1 | Methanolobus tindarius | [NiFe] Group 1k | Euryarchaeota | Methanosarcinales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_013898215.1 | Methanosalsum zhilinae | [NiFe] Group 1k | Euryarchaeota | Methanosarcinales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_011021171.1 | Methanosarcina acetivorans | [NiFe] Group 1k | Euryarchaeota | Methanosarcinales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_011021166.1 | Methanosarcina acetivorans | [NiFe] Group 1k | Euryarchaeota | Methanosarcinales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_011306833.1 | Methanosarcina barkeri | [NiFe] Group 1k | Euryarchaeota | Methanosarcinales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_011306827.1 | Methanosarcina barkeri | [NiFe] Group 1k | Euryarchaeota | Methanosarcinales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_011034237.1 | Methanosarcina mazei | [NiFe] Group 1k | Euryarchaeota | Methanosarcinales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_011034101.1 | Methanosarcina mazei | [NiFe] Group 1k | Euryarchaeota | Methanosarcinales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_011034107.1 | Methanosarcina mazei | [NiFe] Group 1k | Euryarchaeota | Methanosarcinales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome b |
| WP_022846160.1 | Desulfurobacterium sp. TC5-1 | [NiFe] Group 3a | Aquificae | Desulfurobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_013638061.1 | Desulfurobacterium thermolithotrophum | [NiFe] Group 3a | Aquificae | Desulfurobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_013537869.1 | Thermovibrio ammonificans | [NiFe] Group 3a | Aquificae | Desulfurobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_004029354.1 | Methanobacterium formicicum | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_013643821.1 | Methanobacterium lacus | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_013826770.1 | Methanobacterium paludis | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_023993015.1 | Methanobacterium sp. MB1 | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_012956862.1 | Methanobrevibacter ruminantium | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_019262624.1 | Methanobrevibacter smithii | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_016359193.1 | Methanobrevibacter sp. AbM4 | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_011406878.1 | Methanosphaera stadtmanae | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_013296467.1 | Methanothermobacter marburgensis | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_010876915.1 | Methanothermobacter thermautotrophicus | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |
| WP_013414105.1 | Methanothermus fervidus | [NiFe] Group 3a | Euryarchaeota | Methanobacteriales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | F420 reductase |