Phylogenomics Reveals an Anomalous Distribution of USP Genes in Metazoans
Foret, Sylvain; Seneca, Francois O; de Jong, Danielle; Bieller, Annette; Hemmrich, Georg; Augustin, Rene; Hayward, David; Ball, Eldon; Bosch, Thomas CG; Agata, Kiyokazu; Hassel, Monika; Miller, David J.
Members of the universal stress protein (USP) family were originally identified in stressed bacteria on the basis of a shared domain, which has since been reported in a phylogenetically diverse range of prokaryotes, fungi, protists, and plants. Although not previously characterized in metazoans, here we report that USP genes are distributed in animal genomes in a unique pattern that reflects frequent independent losses and independent expansions. Multiple USP loci are present in urochordates as...[Show more]
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