Figure 3. δ/ω-PLTX-Pt1a sequences.
A. Complete amino acid sequence of δ/ω-PLTX-Pt1a. Pal: O-palmitoyl moiety; amide: amidated C-terminal. B. cDNA coding sequence and amino acid sequence of δ/ω-PLTX-Pt1a. The mature toxin is indicated by bold fonts, and the amidation signal sequence at the C-terminus is underlined. The arrow denotes a putative signal cleavage site [17], [27]. C. Comparison of amino acid sequences of δ/ω-PLTX-Pt1a, ω-PLTX-Pt1a (PLTX II) and U1-PLTX-Pt1a (Plt-VI). Plt-VI was reported by Quistad and Skinner [7]. Identical residues in all three peptides are shown in shaded boxes. Spacers (-) are inserted to show maximal homology. The asterisks (*) denote O-palmitoylated residues.