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Trypsin-like serine proteases are involved in large number of processes, especially in digestive degradation and immune responses. Here, we identify the characterization of a trypsin-like serine protease in planarian, Djtry, which interestingly has the incompletely conserved catalytic triad (K, D, and S). Phylogenetic analysis suggests that Djtry is an(More)
Puromycin-sensitive aminopeptidase (PSA) belongs to the M1 zinc metallopeptidase family. PSA is the most abundant aminopeptidase in the brain and plays a role in the metabolism of neuropeptides including those involved in neurodegeneration. A cDNA DjPsa was identified from the planarian Dugesia japonica cDNA library. It contains a 639-bp open reading frame(More)
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