Fig. 2

Fingerprinting of soluble venom. The histogram shows the frequency distribution of molecular weights (MW), in Da, for the 89 peptide masses determined (from which 83 were distinct), present in the venom of Centruroides hirsutipalpus, clustered within different intervals of molecular weights (1000 Da apart from each other). The MWs were obtained using the mass spectrometer LCQ Fleet