... beads, with the aim of both perturb-ing the MS spectrum and capturing the MCP in the body extract. The control spectra, as well as the ‘per-turbed’ one (by rPCI addition, followed by removal of the ... in the 17–37 kDa range are the most prominent. To facilitateidentification, we repeated the 2D-PAGE with threedifferent initial samples from the body, after passingthem through microcolumns with ... characterize them, estab-lishing comparisons with the vertebrate species (i.e. the reference ones). The present study started with a sys-tematic screening in extracts from 25 invertebrates from marine...