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Results of radioimmunoassays for the Ca2+-binding protein, calmodulin, revealed that this receptor constitutes 0.53 +/- 0.12% of the total protein in adult male Schistosoma mansoni. Schistosome calmodulin purified by Ca2+-dependent hydrophobic interaction chromatography showed an apparent molecular weight of 19 kDa, and its mobility on sodium dodecyl(More)
Spontaneous electrical activity was recorded by means of suction electrodes placed on the surface of adult, male Schistosoma mansoni. This electrical activity was a complex of bi- and triphasic potentials that ranged from smaller amplitude waves (0-40 microV) of high frequency (10-40/sec), to randomly occurring, larger amplitude waves (40-1,000+ microV) of(More)
From the studies on the neurophysiology of schistosomes it appears that in spite of the unique hexilaminar arrangement of the tegument's outer membrane, it has biophysical properties not markedly different from those of a variety of other multi-dimensional syncytia. The close electrical coupling of the muscle and tegument must be taken into account when one(More)
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