Figure 5.

Phylogenetic analysis of Eri-1-like exonucleases. The neighbor-joining tree is based on the alignment of the exonuclease domain. Eri-1-like nucleases cluster into three subclasses: Eri-1/3'Exo, Snipper, and Pint1. Tribolium and Drosophila have only Snipper-type nucleases. One human and three sea urchin (Strongylocentrotus purpuratus) proteins are represented by NCBI accession numbers.

Tomoyasu et al. Genome Biology 2008 9:R10   doi:10.1186/gb-2008-9-1-r10
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