Table 3 Selenoproteomes and environmental conditions of 18 selenoprotein-rich organisms
Phyla/organisms | Number of selenoproteins | Selenoproteins (number) | Aerobic/anaerobic | Temperature (°C) |
|---|---|---|---|---|
Deltaproteobacteria | ||||
   Syntrophobacter fumaroxidans | 31 | SelD, FdhA (6), FrhA (3), FrhD (8), HdrA (7), GlpC (3), peroxiredoxin, HesB-like, MsrA | Anaerobic | 20-25 |
   Syntrophus aciditrophicus | 19 | SelD, FdhA (4), FrhD (4), HdrA (4), peroxiredoxin, GrdA, GrdB, Prx-like thiol:disulfide oxidoreductase, thiol:disulfide interchange protein, HesB-like | Anaerobic | 20-25 |
   Desulfotalea psychrophila | 12 | SelD, FdhA (4), GlpC, Prx-like thiol:disulfide oxidoreductase, SelW-like, FrhA, FrhD, HdrA, ArsC-like | Anaerobic | 7-10 |
   Anaeromyxobacter dehalogenans | 11 | FdhA (3), SelD, peroxiredoxin (3), proline reductase, thioredoxin (2), DsbA-like | Anaerobic | 30 |
   Desulfovibrio vulgaris | 8 | SelD, FdhA (3), DsrE-like, GlpC, HesB-like, FrhA | Anaerobic | 25-40 |
   Geobacter metallireducens | 8 | SelD, FdhA, Prx-like thiol:disulfide oxidoreductase, thioredoxin, FrhD, peroxiredoxin, thiol:disulfide interchange protein, NADH oxidase | Anaerobic | 25-30 |
   Geobacter sulfurreducens | 8 | SelD, FdhA, Prx-like thiol:disulfide oxidoreductase, thioredoxin, distant AhpD homolog, glutaredoxin, HesB-like, SelW-like | Anaerobic | 30-35 |
   Geobacter uraniumreducens | 8 | FdhA (2), SelD, Prx-like, thioredoxin, proline reductase, thiol:disulfide interchange protein, distant AhpD homolog | Anaerobic | 30-35 |
   Desulfovibrio desulfuricans | 7 | SelD, FdhA (3), FrhA, HesB-like, DSBA-like | Anaerobic | 25-40 |
   Desulfuromonas acetoxidans | 6 | SelD, GrdA (2), GrdB, HesB-like, distant ArsC homolog | Anaerobic | 25-30 |
Firmicutes/Clostridia | ||||
   Alkaliphilus metalliredigenes | 11 | FdhA, peroxiredoxin (2), GrdA, GrdB, proline reductase, HesB-like, glutaredoxin (2), SelW-like, AhpD-like (COG2128) | Facultative | 30 |
   Syntrophomonas wolfei | 10 | SelD, FdhA (5), FrhD, HdrA, peroxiredoxin, distant Prx-like thiol:disulfide oxidoreductase | Anaerobic | 20-25 |
   Carboxydothermus hydrogenoformans | 9 | SelD, FdhA (2), GrdA, GrdB, homolog of AhpF N-terminal domain, FrhD, thioredoxin, HdrA | Anaerobic | 78 |
   Desulfotomaculum reducens | 8 | SelD, FdhA (2), FrhD (2), HdrA, SelW-like, DsbA-like | Anaerobic | 20-25 |
   Clostridium difficile | 6 | SelD, FdhA, GrdA, GrdB (2), proline reductase | Anaerobic | 25-40 |
   Moorella thermoacetica | 6 | SelD, FdhA (2), HdrA, FrhD, glutaredoxin | Anaerobic | 58 |
Actinobacteria | ||||
   Symbiobacterium thermophilum | 12 | FdhA (3), SelD, GrdA, GrdB, HesB-like, AhpF N-terminal domain, peroxiredoxin, SelW-like, DsbG-like | Microaerophile | 60 |
Spirochaetes | ||||
   Treponema denticola | 6 | SelD, Gpx, GrdA, GrdB (2), thioredoxin | Anaerobic | 30-42 |