| WP_013824003.1 | Desulfotomaculum kuznetsovii | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_013841414.1 | Desulfotomaculum ruminis | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | None |
| WP_013842496.1 | Desulfotomaculum ruminis | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_013931431.1 | Thermotoga thermarum | [FeFe] Group C3 | Thermotogae | Thermotogales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| AEM79842.1 | Thermoanaerobacter wiegelii | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_014063294.1 | Thermoanaerobacter wiegelii | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | None |
| WP_014186009.1 | Desulfosporosinus orientis | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Histidine kinase |
| WP_014270717.1 | Sphaerochaeta pleomorpha | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_014296384.1 | Marinitoga piezophila | [FeFe] Group C3 | Thermotogae | Thermotogales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with methyl-accepting chemotaxis protein |
| WP_014451413.1 | Fervidobacterium pennivorans | [FeFe] Group C3 | Thermotogae | Thermotogales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_014552161.1 | Geobacter sulfurreducens | [FeFe] Group C3 | Deltaproteobacteria | Desulfuromonadales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_014553745.1 | Halanaerobium praevalens | [FeFe] Group C3 | Firmicutes | Halanaerobiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_014559402.1 | Ignavibacterium album | [FeFe] Group C3 | Ignavibacteriae | Ignavibacteriales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with histidine kinase |
| WP_014758428.1 | Thermoanaerobacterium saccharolyticum | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_014855313.1 | Melioribacter roseus | [FeFe] Group C3 | Ignavibacteriae | Ignavibacteriales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_015325786.1 | Halobacteroides halobius | [FeFe] Group C3 | Firmicutes | Halanaerobiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_015359537.1 | Ruminiclostridium stercorarium | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_015513468.1 | Coprococcus catus | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_015518172.1 | Ruminiclostridium siraeum | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_015707141.1 | Treponema primitia | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_015710039.1 | Treponema azotonutricium | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_015722465.1 | Geobacter sp. M18 | [FeFe] Group C3 | Deltaproteobacteria | Desulfuromonadales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_015724298.1 | Desulfobulbus propionicus | [FeFe] Group C3 | Deltaproteobacteria | Desulfobacterales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| 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_015919563.1 | Thermotoga neapolitana | [FeFe] Group C3 | Thermotogae | Thermotogales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_015925729.1 | Clostridium cellulolyticum | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_016777698.1 | Anaerophaga thermohalophila | [FeFe] Group C3 | Bacteroidetes | Bacteroidales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_017416084.1 | Clostridium tunisiense | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_017873317.1 | Caldatribacterium californiense | [FeFe] Group C3 | Atribacteria | Unclassified | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_017890116.1 | Caldatribacterium saccharofermentans | [FeFe] Group C3 | Atribacteria | Unclassified | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_018085928.1 | Desulfurispora thermophila | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_018338305.1 | Butyricimonas synergistica | [FeFe] Group C3 | Bacteroidetes | Bacteroidales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_018526489.1 | Spirochaeta alkalica | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_018592801.1 | Terrisporobacter glycolicus | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_018703124.1 | Anaeromusa acidaminophila | [FeFe] Group C3 | Firmicutes | Selenomonadales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_019880479.1 | Succinispira mobilis | [FeFe] Group C3 | Firmicutes | Selenomonadales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_020613089.1 | Spirochaeta bajacaliforniensis | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_020675965.1 | Geopsychrobacter electrodiphilus | [FeFe] Group C3 | Deltaproteobacteria | Desulfuromonadales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_020814845.1 | Ruminiclostridium papyrosolvens | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_023383391.1 | Youngiibacter fragilis | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_024823816.1 | Desulfovibrio magneticus | [FeFe] Group C3 | Deltaproteobacteria | Desulfovibrionales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_026475064.1 | Alkaliflexus imshenetskii | [FeFe] Group C3 | Bacteroidetes | Bacteroidales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_026649803.1 | Blautia wexlerae | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_026841112.1 | Geobacter bremensis | [FeFe] Group C3 | Deltaproteobacteria | Desulfuromonadales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_026892185.1 | Lachnoclostridium aerotolerans | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_026894719.1 | Clostridiisalibacter paucivorans | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_027202827.1 | Butyricimonas virosa | [FeFe] Group C3 | Bacteroidetes | Bacteroidales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_027356645.1 | Desulfotomaculum thermocisternum | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_027398115.1 | Anaerovorax odorimutans | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_027625074.1 | Clostridium lundense | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |