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Abstract The synthesis and secretion of the humoral opsonin from the colonial ascidian Botryllus schlosseri was studied by using specific polyclonal antibodies that recognise both of the bands obtained after SDS-PAGE of the purified lectin. The agglutinin was revealed on the surface of agglutinated yeast and red blood cells and in the cytoplasm of the phagocytes, either uniformly distributed or localised...
Abstract Phenoloxidase (PO) from the colonial ascidian Botryllus schlosseri was purified using two different chromatographic strategies. A three-step purification was developed in order to maintain enzyme activity, whereas an easier purification procedure was adopted to obtain enough PO for the production of specific polyclonal antibodies. The enzyme showed optimal pH and temperature values of 7.0...