Table 4 Events of selenoprotein loss identified in different bacterial phyla
Phylum/organism | Number of selenoproteins | Selenoprotein families lost in sister organisms |
|---|---|---|
Deltaproteobacteria | Â | Â |
   Syntrophus aciditrophicus | 19 | GrdB |
   Desulfotalea psychrophila | 12 | SelW-like, ArsC-like |
   Geobacter metallireducens | 8 | NADH oxidase |
   Geobacter sulfurreducens | 8 | HesB-like, SelW-like |
   Desulfuromonas acetoxidans | 6 | GrdB, ArsC-like |
Firmicutes/Clostridia | Â | Â |
   Alkaliphilus metalliredigenes | 11 | GrdA, GrdB |
   Syntrophomonas wolfei | 10 | FrhD, HdrA |
   Carboxydothermus hydrogenoformans | 9 | GrdA, GrdB, homolog of AhpF N-terminal domain, FrhD, HdrA |
   Desulfotomaculum reducens | 8 | FrhD, HdrA, DsbA-like |
   Clostridium difficile | 6 | SelD, FdhA, GrdA, GrdB |
   Moorella thermoacetica | 6 | SelD, FdhA, HdrA, FrhD |
   Thermoanaerobacter tengcongensis | 3 | SelD, GrdA, GrdB |
   Desulfitobacterium hafniense | 3 | HesB-like |
   Clostridium perfringens | 2 | SelD |
Actinobacteria | Â | Â |
   Symbiobacterium thermophilum | 12 | SelD, HesB-like, SelW-like |
   Rubrobacter xylanophilus | 5 | SelD |