SMBS_DPP contained the cata- lytic triad (Ser-633, Asp-711, His-743), a predicted trans- membrane domain at the N-terminus. Phyre2 was able Fig. 4 Aspartic protease of S. molnari – signal peptide peptidase. a Phylogenetic relationship of S. molnari SPPL (Sm_SPPL), (ML, 1000 ...