| WP_012056722.1 | Thermosipho melanesiensis | [FeFe] Group C3 | Thermotogae | Thermotogales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_012065100.1 | Alkaliphilus metalliredigens | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012268929.1 | Thermoanaerobacter pseudethanolicus | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012414922.1 | Elusimicrobium minutum | [FeFe] Group C3 | Elusimicrobia | Elusimicrobiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012447302.1 | Natranaerobius thermophilus | [FeFe] Group C3 | Firmicutes | Natranaerobiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012532230.1 | Geobacter bemidjiensis | [FeFe] Group C3 | Deltaproteobacteria | Desulfuromonadales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_012547917.1 | Dictyoglomus thermophilum | [FeFe] Group C3 | Dictyoglomi | Dictyoglomales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012582931.1 | Dictyoglomus turgidum | [FeFe] Group C3 | Dictyoglomi | Dictyoglomales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012635137.1 | Halothermothrix orenii | [FeFe] Group C3 | Firmicutes | Halanaerobiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012635165.1 | Halothermothrix orenii | [FeFe] Group C3 | Firmicutes | Halanaerobiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012635244.1 | Halothermothrix orenii | [FeFe] Group C3 | Firmicutes | Halanaerobiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_012645645.1 | Geobacter daltonii | [FeFe] Group C3 | Deltaproteobacteria | Desulfuromonadales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_012862884.1 | Sebaldella termitidis | [FeFe] Group C3 | Fusobacteria | Fusobacteriales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_012996079.1 | Thermoanaerobacter italicus | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_013119651.1 | Thermincola potens | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_013121809.1 | Thermincola potens | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_013150921.1 | Thermoanaerobacter mathranii | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_013273994.1 | Lachnoclostridium saccharolyticum | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013298247.1 | Thermoanaerobacterium thermosaccharolyticum | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013314018.1 | Spirochaeta thermophila | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013379523.1 | Eubacterium limosum | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013387666.1 | Ilyobacter polytropus | [FeFe] Group C3 | Fusobacteria | Fusobacteriales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_013406267.1 | Halanaerobium hydrogeniformans | [FeFe] Group C3 | Firmicutes | Halanaerobiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_013484024.1 | Ethanoligenens harbinense | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_013570771.1 | Thermoanaerobacter brockii | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_013608542.1 | Sphaerochaeta globosa | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013613427.1 | Odoribacter splanchnicus | [FeFe] Group C3 | Bacteroidetes | Bacteroidales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013657393.1 | Cellulosilyticum lentocellum | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_013759422.1 | Treponema brennaborense | [FeFe] Group C3 | Spirochaetes | Spirochaetales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013778046.1 | Tepidanaerobacter acetatoxydans | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013781007.1 | Mahella australiensis | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Fusion with transcriptional activator |
| WP_013787821.1 | Thermoanaerobacterium xylanolyticum | [FeFe] Group C3 | Firmicutes | Thermoanaerobacterales | Sensory | Labile | 3 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase, thioredoxin |
| WP_013809975.1 | Desulfotomaculum carboxydivorans | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| WP_013810321.1 | Desulfotomaculum carboxydivorans | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 1 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | None |
| WP_013823945.1 | Desulfotomaculum kuznetsovii | [FeFe] Group C3 | Firmicutes | Clostridiales | Sensory | Labile | 2 | [FeFe]-centre, 2 x [4Fe4S] clusters, PAS domain | Phosphatase |
| 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 |