THE DISTRIBUTION OF CALMODULIN CALMODULIN-BINDING PROTEINS IN THE RATTAPEWORM, HYMENOLEPIS-DIMINUTA

Live tapeworms have been fixed to retain antigenicity of their protein s, and subsequently prepared for electron microscopy. Thin sections of tapeworms were prepared from resin blocks. Sections were immunocytoch emically labelled using a colloidal gold probe and viewed using transm ission electron microscopy. Calmodulin was detected associated with ce llular structures to which calmodulin has previously been linked in ot her higher eukaryotes. Calmodulin would appear to have a similar role of importance in tapeworms, as it does in higher eukaryotes although t apeworms are prevalently a syncitium.