Neuraminidase "unmasking" and failure of trypsin to "unmask" -D-galactose-like sites on erythrocyte, lymphoma, and normal and virus-transformed fibroblast cell membranes.

Agglutination Tests Animals Binding Sites Cell Membrane/drug effects Cells, Cultured Clostridium perfringens/enzymology Erythrocytes/drug effects Fibroblasts Galactose/metabolism Humans Iodine Isotopes Lymphocyte Activation Lymphoma/metabolism Mice Neoplasms, Experimental/metabolism Neuraminidase/pharmacology Simian virus 40 Trypsin/pharmacology Vibrio Infections/enzymology

Iodine Isotopes Neuraminidase Trypsin Galactose