Figure 2From: In silico identification of genes involved in selenium metabolism: evidence for a third selenium utilization traitPhylogenetic analysis of HP1 and HP2. SelD-containing and SelD-lacking organisms are shown in red and green, respectively. Organisms which contain SelD, HP1 and HP2 are shaded. (A) Hypothetical protein HP1. (B) Hypothetical protein HP2.Back to article page