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Calculation of antibody concentration in leaf tissue
Calculation of antibody concentration in leaf tissue

... DTT for reducing conditions), boiled for 3 minutes and loaded onto a 4-12% gradient polyacrylamide gel (Tris-Glycine; BioRad). Following completion of electrophoresis, the gels were subjected to either Coomassie or silver staining, or Western blot analysis. For the latter, the gel was electro-blotte ...
EUGENE GARFIELD ..
EUGENE GARFIELD ..

... that antigen-sensitive cells (lymphocytes committed to making antibodies) must have a diversity of antibody genes. The antigen-sensitive cells, stimulated by a self-antigen (an antigen present within the animal), enter cell division. Mutations occur in the rapidly dividing cells, producing a pool of ...
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... Site of B cell maturation into plasma cells, which synthesize antibodies in its white pulp and initiates humoral response Removes antibody-coated bacteria along with antibody-coated blood cells. It contains (in its blood reserve) half of the body monocytes within the red pulp, upon moving to injured ...
allergies - West Campus | Pima Community College, Tucson
allergies - West Campus | Pima Community College, Tucson

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SI Practice exam 2

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Polyclonal B cell response



Polyclonal B cell response is a natural mode of immune response exhibited by the adaptive immune system of mammals. It ensures that a single antigen is recognized and attacked through its overlapping parts, called epitopes, by multiple clones of B cell.In the course of normal immune response, parts of pathogens (e.g. bacteria) are recognized by the immune system as foreign (non-self), and eliminated or effectively neutralized to reduce their potential damage. Such a recognizable substance is called an antigen. The immune system may respond in multiple ways to an antigen; a key feature of this response is the production of antibodies by B cells (or B lymphocytes) involving an arm of the immune system known as humoral immunity. The antibodies are soluble and do not require direct cell-to-cell contact between the pathogen and the B-cell to function.Antigens can be large and complex substances, and any single antibody can only bind to a small, specific area on the antigen. Consequently, an effective immune response often involves the production of many different antibodies by many different B cells against the same antigen. Hence the term ""polyclonal"", which derives from the words poly, meaning many, and clones (""Klon""=Greek for sprout or twig); a clone is a group of cells arising from a common ""mother"" cell. The antibodies thus produced in a polyclonal response are known as polyclonal antibodies. The heterogeneous polyclonal antibodies are distinct from monoclonal antibody molecules, which are identical and react against a single epitope only, i.e., are more specific.Although the polyclonal response confers advantages on the immune system, in particular, greater probability of reacting against pathogens, it also increases chances of developing certain autoimmune diseases resulting from the reaction of the immune system against native molecules produced within the host.
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