| WP_013295617.1 | Methanothermobacter marburgensis | [NiFe] Group 4h | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_010876037.1 | Methanothermobacter thermautotrophicus | [NiFe] Group 4h | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_015790909.1 | Methanocaldococcus fervens | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_013100690.1 | Methanocaldococcus infernus | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_010870018.1 | Methanocaldococcus jannaschii | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_004592818.1 | Methanocaldococcus villosus | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_015732568.1 | Methanocaldococcus vulcanius | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_011973090.1 | Methanococcus aeolicus | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_012193964.1 | Methanococcus maripaludis | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_011972581.1 | Methanococcus vannielii | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_013180984.1 | Methanococcus voltae | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_013867209.1 | Methanothermococcus okinawensis | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_018154556.1 | Methanothermococcus thermolithotrophicus | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_007045054.1 | Methanotorris formicicus | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_013799750.1 | Methanotorris igneus | [NiFe] Group 4h | Euryarchaeota | Methanococcales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_011832947.1 | Methanocorpusculum labreanum | [NiFe] Group 4h | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_014867151.1 | Methanoculleus bourgensis | [NiFe] Group 4h | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_011844026.1 | Methanoculleus marisnigri | [NiFe] Group 4h | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_004038499.1 | Methanofollis liminatans | [NiFe] Group 4h | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_004076146.1 | Methanoplanus limicola | [NiFe] Group 4h | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| WP_013329140.1 | Methanoplanus petrolearius | [NiFe] Group 4h | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 20 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, Two polyferredoxins, eleven TM proteins, three hypotheticals |
| 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_004029221.1 | Methanobacterium formicicum | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| 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_013826680.1 | Methanobacterium paludis | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_023992909.1 | Methanobacterium sp. MB1 | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_012956799.1 | Methanobrevibacter ruminantium | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_019262598.1 | Methanobrevibacter smithii | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_016359143.1 | Methanobrevibacter sp. AbM4 | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| 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_013296415.1 | Methanothermobacter marburgensis | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_010876862.1 | Methanothermobacter thermautotrophicus | [NiFe] Group 4i | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_013413704.1 | Methanothermus fervidus | [NiFe] Group 4g | Euryarchaeota | Methanobacteriales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_012794989.1 | Methanocaldococcus fervens | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_013099747.1 | Methanocaldococcus infernus | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_010870540.1 | Methanocaldococcus jannaschii | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_012981217.1 | Methanocaldococcus sp. FS406-22 | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_004590220.1 | Methanocaldococcus villosus | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_015732720.1 | Methanocaldococcus vulcanius | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_011973026.1 | Methanococcus aeolicus | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_012194251.1 | Methanococcus maripaludis | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_011972283.1 | Methanococcus vannielii | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_013180047.1 | Methanococcus voltae | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_013866214.1 | Methanothermococcus okinawensis | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_018154032.1 | Methanothermococcus thermolithotrophicus | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_007044316.1 | Methanotorris formicicus | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_013798188.1 | Methanotorris igneus | [NiFe] Group 4i | Euryarchaeota | Methanococcales | Evolving | Sensitive | 16 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoH, NuoL, polyferredoxin, nine TM proteins, two hypotheticals |
| WP_015284192.1 | Methanoregula formicica | [NiFe] Group 4g | Euryarchaeota | Methanomicrobiales | Evolving | Sensitive | 6 | [NiFe]-centre, 1 x [4Fe4S] clusters | NuoL, NuoH, NuoC, [FeS] protein |
| WP_015839082.1 | Geobacter sp. M21 | [FeFe] Group C3 | Deltaproteobacteria | Desulfuromonadales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_012939228.1 | Acidaminococcus fermentans | [FeFe] Group B | Firmicutes | Selenomonadales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |