title: Immunoquantitation of antibody to placental phosphatase by single radial immunodiffusion; effect of antibody avidity and immunization protocol.
abstract: The radial immunodiffusion method was used to titer antisera to human placental alkaline phosphatase. When this was done with diluted enzyme and antisera, it was found that early-course antisera consistently yielded low titers. This observation was consistent with the known low avidity of such antisera.
mesh_terms: D000469:Alkaline Phosphatase / Q000276:immunology*; D000818:Animals; D000906:Antibodies / Q000276:immunology*; D000915:Antibody Affinity; D005260:Female; D006801:Humans; D007106:Immune Sera; D007114:Immunization; D005779:Immunodiffusion; D011247:Pregnancy; D011817:Rabbits; D013997:Time Factors
chemical_list: D000906:Antibodies; D007106:Immune Sera; D000469:Alkaline Phosphatase