title: High number of antigen-binding cells in unimmunized mice and possible occurrence of multispecific lymphocytes.
mesh_terms: D000818:Animals; D000941:Antigens; D001402:B-Lymphocytes / Q000276:immunology*; D001666:Binding Sites, Antibody; D005455:Fluorescent Antibody Technique; D007106:Immune Sera / Q000302:isolation & purification; D007111:Immunity, Cellular; D007115:Immunization Schedule; D007140:Immunoglobulin Fab Fragments / Q000302:isolation & purification; D007141:Immunoglobulin Fc Fragments; D066298:In Vitro Techniques; D051379:Mice; D008807:Mice, Inbred BALB C; D008856:Microscopy, Fluorescence; D011402:Pronase / Q000276:immunology; D011955:Receptors, Drug; D013154:Spleen / Q000276:immunology; D013696:Temperature; D013997:Time Factors; D014027:Tobacco Mosaic Virus / Q000276:immunology
chemical_list: D000941:Antigens; D007106:Immune Sera; D007140:Immunoglobulin Fab Fragments; D007141:Immunoglobulin Fc Fragments; D011955:Receptors, Drug; D011402:Pronase