Fig. 3. Comparing water-soluble DV and IV using HPLC-ESI-MS. The base peak ion chromatograms show the peptide profiles for the IV of three snails (A,C,E), and the corresponding DV from the same individuals (B,D,F, respectively). Abundant peptides are labeled by protonated monoisotopic mass or, where appropriate, by known or putative C. striatus toxins. brcn, bromocontryphan; cn, contryphan; * indicates [des-Gly¹] (bromo)contryphan form.