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Identification of an antigen-specific immunoglobulin M antibody associated with acute Toxoplasma infection. 1983

H A Erlich, and G Rodgers, and P Vaillancourt, and F G Araujo, and J S Remington

We used the protein gel transfer technique (Western blotting) to analyze the immune response to individual electrophoretically resolved Toxoplasma antigens. Toxoplasma antigens were fractionated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The array of resolved proteins was electrophoretically transferred to CNBr-activated filter paper and incubated with serum samples from patients with either acute or chronic Toxoplasma infections or with serum samples from seronegative controls. Serum immunoglobulin G and immunoglobulin M bound to individual Toxoplasma antigens were detected by radioiodinated staphylococcal protein A and a goat anti-human immunoglobulin M antibody, respectively. A complex array of Toxoplasma antigens was revealed by this procedure. Immunoglobulin M directed against a low-molecular-weight antigen was detected in sera from all acutely infected adults (19 sera tested) and was absent from all sera from individuals with chronic infections (9 sera tested) and from sera from seronegative controls (9 sera tested).

UI MeSH Term Description Entries
D007075 Immunoglobulin M A class of immunoglobulin bearing mu chains (IMMUNOGLOBULIN MU-CHAINS). IgM can fix COMPLEMENT. The name comes from its high molecular weight and originally was called a macroglobulin. Gamma Globulin, 19S,IgM,IgM Antibody,IgM1,IgM2,19S Gamma Globulin,Antibody, IgM
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000208 Acute Disease Disease having a short and relatively severe course. Acute Diseases,Disease, Acute,Diseases, Acute
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000906 Antibodies Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D000939 Epitopes Sites on an antigen that interact with specific antibodies. Antigenic Determinant,Antigenic Determinants,Antigenic Specificity,Epitope,Determinant, Antigenic,Determinants, Antigenic,Specificity, Antigenic

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