| WP_014904712.1 | Desulfosporosinus meridiei | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015261135.1 | Desulfitobacterium dichloroeliminans | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015326565.1 | Halobacteroides halobius | [FeFe] Group B | Firmicutes | Halanaerobiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015360284.1 | Ruminiclostridium stercorarium | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015390585.1 | Clostridium saccharoperbutylacetonicum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015393395.1 | Clostridium saccharoperbutylacetonicum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015529112.1 | Lachnoclostridium torques | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015757276.1 | Desulfotomaculum acetoxidans | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015778292.1 | Anaerococcus prevotii | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015869123.1 | Kosmotoga olearia | [FeFe] Group B | Thermotogae | Thermotogales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_015943050.1 | Desulfitobacterium hafniense | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_016146243.1 | Butyricicoccus pullicaecorum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_016206137.1 | Clostridium sartagoforme | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_017414827.1 | Clostridium tunisiense | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_017753183.1 | Clostridium tyrobutyricum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_018086727.1 | Desulfurispora thermophila | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_018247956.1 | Orenia marismortui | [FeFe] Group B | Firmicutes | Halanaerobiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_019880475.1 | Succinispira mobilis | [FeFe] Group B | Firmicutes | Selenomonadales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_019893070.1 | Allobaculum stercoricanis | [FeFe] Group B | Firmicutes | Erysipelotrichales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_020073353.1 | Ruminiclostridium sporosphaeroides | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_021170205.1 | Sporomusa ovata | [FeFe] Group B | Firmicutes | Selenomonadales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_021626398.1 | Atopobium sp. 810 | [FeFe] Group B | Actinobacteria | Coriobacteriales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_021724994.1 | Olsenella profusa | [FeFe] Group B | Actinobacteria | Coriobacteriales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_021803667.1 | Clostridium intestinale | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_022078722.1 | Acetobacter sp. CAG:267 | [FeFe] Group B | Alphaproteobacteria | Rhodospirillales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_022418160.1 | Acidiphilium sp. CAG:727 | [FeFe] Group B | Alphaproteobacteria | Rhodospirillales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_022743703.1 | Clostridium saccharobutylicum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_022746733.1 | Clostridium saccharobutylicum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_023386490.1 | Youngiibacter fragilis | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_023436998.1 | Clostridium tetani | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_023920581.1 | Ruminococcus lactaris | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_023975043.1 | Clostridium pasteurianum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_023976023.1 | Clostridium pasteurianum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_024621657.1 | Peptoclostridium mangenotii | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_024933083.1 | Clostridium botulinum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_025640716.1 | Clostridium ultunense | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_026881775.1 | Clostridium akagii | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_026886567.1 | Clostridium beijerinckii | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_026887424.1 | Clostridium beijerinckii | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_026891848.1 | Lachnoclostridium aerotolerans | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_026894367.1 | Clostridiisalibacter paucivorans | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_026939128.1 | Holophaga foetida | [FeFe] Group B | Acidobacteria | Holophagales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_027090514.1 | Erysipelatoclostridium saccharogumia | [FeFe] Group B | Firmicutes | Erysipelotrichales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_027095964.1 | Ruminiclostridium viride | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_027098445.1 | Clostridium paraputrificum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_027098927.1 | Clostridium paraputrificum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_027207458.1 | Butyrivibrio fibrisolvens | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_027365621.1 | Desulfotomaculum alcoholivorax | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_027625395.1 | Clostridium lundense | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |
| WP_027629995.1 | Ruminiclostridium cellobioparum | [FeFe] Group B | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters | None |