7 S and 19 S fractions of rabbit and mouse antisera were tested for cytophilic properties for homologous macrophages. This activity was found only in the 7 S fractions.

1

This investigation was supported by the United States Public Health Service (Grants AI-2094 and AI-04983) and by the Health Research Council of the City of New York under Contract I-138.

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Copyright © 1968 by The American Association of Immunologists, Inc.
1968
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