Does J chain mediate the combination of 19S IgM and dimeric IgA with the secretory component rather than being necessary for their polymerization?
D000918:Antibody Specificity; D003126:Colostrum / Q000276:immunology; D004591:Electrophoresis, Polyacrylamide Gel; D006023:Glycoproteins; D006801:Humans; D007070:Immunoglobulin A; D007144:Immunoglobulin J-Chains; D007075:Immunoglobulin M; D007457:Iodine Radioisotopes; D046911:Macromolecular Substances; D014461:Ultracentrifugation
D006023:Glycoproteins; D007070:Immunoglobulin A; D007144:Immunoglobulin J-Chains; D007075:Immunoglobulin M; D007457:Iodine Radioisotopes; D046911:Macromolecular Substances