| WP_015739747.1 | Ammonifex degensii | [FeFe] Group A1 | Firmicutes | Thermoanaerobacterales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_015918980.1 | Thermotoga neapolitana | [FeFe] Group A1 | Thermotogae | Thermotogales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_015943803.1 | Desulfitobacterium hafniense | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_016206989.1 | Clostridium sartagoforme | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_016268012.1 | Bacteroides thetaiotaomicron | [FeFe] Group A3 | Bacteroidetes | Bacteroidales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_017752954.1 | Clostridium tyrobutyricum | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_020488527.1 | Dehalobacter sp. FTH1 | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_021800870.1 | Clostridium intestinale | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_021876669.1 | Clostridium chauvoei | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_022743406.1 | Clostridium saccharobutylicum | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_022808283.1 | Omnitrophus fodinae | [FeFe] Group A1 | Omnitrophica | Unclassified | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_024103747.1 | Thermotoga maritima | [FeFe] Group A1 | Thermotogae | Thermotogales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_024286662.1 | Cellulomonas sp. KRMCY2 | [FeFe] Group A1 | Actinobacteria | Actinomycetales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_024851245.1 | Thiomicrospira kuenenii | [FeFe] Group A1 | Gammaproteobacteria | Thiothrichales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_024933644.1 | Clostridium botulinum | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | Small subunit |
| WP_026649549.1 | Blautia wexlerae | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_026883172.1 | Clostridium akagii | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_027098630.1 | Clostridium paraputrificum | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_027631367.1 | Clostridium hydrogeniformans | [FeFe] Group A1 | Firmicutes | Clostridiales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_028485709.1 | Thiomicrospira chilensis | [FeFe] Group A1 | Gammaproteobacteria | Thiothrichales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_028843928.1 | Thermotoga elfii | [FeFe] Group A1 | Thermotogae | Thermotogales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_028856877.1 | Psychrilyobacter atlanticus | [FeFe] Group A1 | Fusobacteria | Fusobacteriales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_029909256.1 | Hydrogenovibrio marinus | [FeFe] Group A1 | Gammaproteobacteria | Thiothrichales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_029933546.1 | Thiomicrospira pelophila | [FeFe] Group A1 | Gammaproteobacteria | Thiothrichales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_001305709.1 | Trichomonas vaginalis | [FeFe] Group A1 | Metamonada | Trichomonadida | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_001310180.1 | Trichomonas vaginalis | [FeFe] Group A1 | Metamonada | Trichomonadida | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_001322682.1 | Trichomonas vaginalis | [FeFe] Group A1 | Metamonada | Trichomonadida | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | Fusion with ferredoxin reductase |
| XP_001580286.1 | Trichomonas vaginalis | [FeFe] Group A1 | Metamonada | Trichomonadida | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_001580488.1 | Trichomonas vaginalis | [FeFe] Group A1 | Metamonada | Trichomonadida | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | Fusion with sulfite reductase |
| XP_002295160.1 | Thalassiosira pseudonana | [FeFe] Group A1 | Heterokonta | Thalassiosirales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_002674266.1 | Naegleria gruberi | [FeFe] Group A1 | Percolozoa | Schizopyrenida | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_005847147.1 | Chlorella variabilis | [FeFe] Group A1 | Chlorophyta | Chlorellales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| XP_005848612.1 | Chlorella variabilis | [FeFe] Group A1 | Chlorophyta | Chlorellales | Evolving | Labile | 1 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | None |
| WP_002727095.1 | Phaeospirillum molischianum | [FeFe] Group A2 | Alphaproteobacteria | Rhodospirillales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_002846126.1 | Peptostreptococcus anaerobius | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_004065781.1 | Eubacterium plexicaudatum | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_004607263.1 | Lachnoclostridium scindens | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_004611441.1 | Tyzzerella nexilis | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_004821125.1 | Peptoniphilus indolicus | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_005338995.1 | Dorea formicigenerans | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_005348317.1 | Eubacterium hallii | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_005583237.1 | Clostridium ultunense | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_006235348.1 | Collinsella aerofaciens | [FeFe] Group A2 | Actinobacteria | Coriobacteriales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_006361310.1 | Slackia exigua | [FeFe] Group A2 | Actinobacteria | Coriobacteriales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_006565663.1 | Anaerostipes caccae | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_006598813.1 | Pseudoramibacter alactolyticus | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_007047054.1 | Subdoligranulum variabile | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_007156182.1 | Oribacterium sinus | [FeFe] Group A2 | Firmicutes | Clostridiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_008382437.1 | Rhodovulum sp. PH10 | [FeFe] Group A2 | Alphaproteobacteria | Rhodobacterales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |
| WP_008540631.1 | Sutterella parvirubra | [FeFe] Group A2 | Betaproteobacteria | Burkholderiales | Evolving | Labile | 2 | [FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] cluster | NADH-dependent glutamate synthase |