
A method of obtaining monospecific antiserum to the human secretory IgA is described. Immunochemically pure secretory IgA (isolated from human colostrum by fractionation with ammonium sulfate and gel-filtration on Sephadex G-200) was used for immunization of rabbits or sheep. Heterologous antibodies were removed by adsorption with commercial gamma globulin, normal serum, the serum of a patient suffering from A-myeloma with the IgA polymere and purified lactoferrin. Monospecific antiserum to the secretory IgA gave a reaction of complete immunological identity with the secretory IgA and a free secretory component.
Sheep, Colostrum, Immune Sera, Antibodies, Heterophile, Moscow, Immunoglobulin A, Epitopes, Lactoferrin, Immunoglobulin A, Secretory, Immunologic Techniques, Animals, Humans, Female, Immunization, Adsorption, Rabbits, Antigens, Immunoelectrophoresis
Sheep, Colostrum, Immune Sera, Antibodies, Heterophile, Moscow, Immunoglobulin A, Epitopes, Lactoferrin, Immunoglobulin A, Secretory, Immunologic Techniques, Animals, Humans, Female, Immunization, Adsorption, Rabbits, Antigens, Immunoelectrophoresis
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