Table 2

Distribution of 25 selenoprotein families in bacterial phyla/branches

Phyla
Number of selenoprotein families
Number of selenoproteins

Deltaproteobacteria
22
121
Firmicutes/Clostridia
16
58
Actinobacteria
12
19
Spirochaetes
5
6
Chloroflexi
3
3
Acidobacteria
3
4
Firmicutes/Bacillales
3
3
Epsilonproteobacteria
3
18
Gammaproteobacteria/Vibrionales
3
6
Aquificae
2
2
Gammaproteobacteria/Pasteurellales
2
9
Alphaproteobacteria
1
3
Betaproteobacteria
1
10
Gammaproteobacteria (other than listed)
1
23

Total
25
285

Zhang et al. Genome Biology 2006 7:R94   doi:10.1186/gb-2006-7-10-r94