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Biol Bull 162: 404-412. (June 1982)
© 1982 Marine Biological Laboratory
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SOME PROPERTIES OF AN AGGLUTININ IN THE HAEMOLYMPH OF THE POND SNAIL LYMNAEA STAGNALIS

W. P. W. VAN DER KNAAP 1, A. DODERER 1, L. H. BOERRIGTER-BARENDSEN 1, and T. SMINIA 2

1 Biological Laboratory, Vrije Universiteit, De Boelelaan 1087, 1007 MC Amsterdam, The Netherlands
2 Department of Histology, Medical Faculty, Vrije Universiteit, P. O. Box 7161, 1007 MC Amsterdam, The Netherlands.

A broad spectrum agglutinin in the haemolymph of the pond snail, Lymnaea stagnalis, is described. At dilutions ranging up to 1/2048 it agglutinated erythrocytes of several sources, bacteria and yeast cells. Haemolymph of some specimens agglutinated all types of cells, whereas that of others did not agglutinate human and sheep erythrocytes.

In inhibition tests with a variety of carbohydrates, D-galactose, L-forms of some monosaccharides, and 3 polysaccharides, especially L. stagnalis galactogen, were good inhibitors.

The agglutinin is a protein with a M. W. of approximately 60,000.

It was demonstrated in vitro that the agglutinin probably has opsonizing properties.

Submitted on June 19, 1981
Accepted on March 15, 1982






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Copyright © 1982 by the Marine Biological Laboratory.