The very high specificity has been ascertained in immunohistochemistry as well as in indirect ELISA and immunoblotting. Additionally, the specificity has been tested by crossed immunoelectrophoresis using 12.5 µL antibody per square cm gel area against 2 µL human plasma.
fragment antibody is particularly useful for labeling unfixed blood cells containing active Fc receptors. This antibody is useful for the identification of plasma cells and related lymphoid cells containing IgM. It is a useful aid for classification of B-cell neoplasia.