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Biol Bull 111: 358-363. (December 1956)
© 1956 Marine Biological Laboratory
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IMMOBILIZING AND PRECIPITATING ANTIGENS OF PARAMECIUM

IRVING FINGER 1

1 Zoological Laboratory, University of Pennsylvania, Philadelphia, Pennsylvania

1. A study of serotypes G and C, of variety 2, Paramecium aurelia, has been made, using diffusion in agar. It has been shown that animals of each serotype have a specific precipitating antigen which is lacking in animals of other serotypes. Consequently, it seems probable that these antigens are the immobilizing antigens.

2. Comparisons of antibody concentration, as determined by immobilization titers and by band position, show that the precipitated band may not be composed solely of immobilizing antigen and antibody, and that there is precipitating antibody that is not capable of immobilizing.






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Copyright © 1956 by the Marine Biological Laboratory.