| WP_015958012.1 | Clostridium botulinum | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_027639785.1 | Clostridium cadaveris | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_015924586.1 | Clostridium cellulolyticum | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_010076234.1 | Clostridium cellulovorans | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014254247.1 | Clostridium clariflavum | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_027623849.1 | Clostridium lundense | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_024346501.1 | Clostridium methoxybenzovorans | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_004615979.1 | Clostridium papyrosolvens | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_015614971.1 | Clostridium pasteurianum | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_013272840.1 | Clostridium saccharolyticum | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_015394142.1 | Clostridium saccharoperbutylacetonicum | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_016206881.1 | Clostridium sartagoforme | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_029159252.1 | Clostridium scatologenes | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_003493671.1 | Clostridium sporogenes | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_017413313.1 | Clostridium tunisiense | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_025205213.1 | Dehalobacter restrictus | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_019225238.1 | Dehalobacter sp. E1 | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_020491267.1 | Dehalobacter sp. FTH1 | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014792614.1 | Desulfitobacterium dehalogenans | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014794526.1 | Desulfitobacterium dehalogenans | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_015262676.1 | Desulfitobacterium dichloroeliminans | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_015262308.1 | Desulfitobacterium dichloroeliminans | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_005811612.1 | Desulfitobacterium hafniense | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_005808602.1 | Desulfitobacterium hafniense | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_005812775.1 | Desulfitobacterium hafniense | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_019850824.1 | Desulfitobacterium sp. PCE1 | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014825623.1 | Desulfosporosinus acidiphilus | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014828375.1 | Desulfosporosinus acidiphilus | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014901287.1 | Desulfosporosinus meridiei | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014901856.1 | Desulfosporosinus meridiei | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014183412.1 | Desulfosporosinus orientis | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014182845.1 | Desulfosporosinus orientis | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_009616484.1 | Desulfosporosinus sp. OT | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_007778579.1 | Desulfosporosinus youngiae | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_007779707.1 | Desulfosporosinus youngiae | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_014116604.1 | Oscillibacter valericigenes | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_017379378.1 | Paenisporosarcina sp. TG-14 | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_012032862.1 | Pelotomaculum thermopropionicum | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_013174572.1 | Syntrophothermus lipocalidus | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_013119172.1 | Thermincola potens | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_013119653.1 | Thermincola potens | [NiFe] Group 1a | Firmicutes | Clostridiales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_021169773.1 | Sporomusa ovata | [NiFe] Group 1a | Firmicutes | Selenomonadales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_007288048.1 | Thermosinus carboxydivorans | [NiFe] Group 1a | Firmicutes | Selenomonadales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_015739219.1 | Ammonifex degensii | [NiFe] Group 1a | Firmicutes | Thermoanaerobacterales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_015739752.1 | Ammonifex degensii | [NiFe] Group 1a | Firmicutes | Thermoanaerobacterales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_028052542.1 | Carboxydothermus ferrireducens | [NiFe] Group 1a | Firmicutes | Thermoanaerobacterales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_011344452.1 | Carboxydothermus hydrogenoformans | [NiFe] Group 1a | Firmicutes | Thermoanaerobacterales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_015049787.1 | Thermacetogenium phaeum | [NiFe] Group 1a | Firmicutes | Thermoanaerobacterales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_013755712.1 | Thermodesulfobium narugense | [NiFe] Group 1a | Firmicutes | Thermoanaerobacterales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 3 x [4Fe4S] clusters | Cytochrome |
| WP_012675774.1 | Persephonella marina | [NiFe] Group 1b | Aquificae | Aquificales | Anaerobic Uptake | Sensitive | 3 | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster | Cytochrome |