Physcomitrella patens signal peptides. Amino acid sequences of signal peptides from PpAP1 (ASP), VEGF (VSP) and the extracellular proteins PpFLP, PpLTP, PpPME1, PpXTH1, PpCALP, and VEGF are shown as predicted by SignalP. Letters with yellow background represent hydrophobic amino acid residues (V, L, I, W, F, M), orange letters positive (K, R) and green letters small and neutral residues (A, C, G, N, P, S, T, V). The predicted cleavage sites are indicated as well as the positions adjacent to this site. In the right part of the figure probabilities for each signal peptide and the cleavage site given by the SignalP-HMM prediction as well as the length of the signal peptides are shown.