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Class switching

Biology  Class  Classical genetics

class switching
in an antibody producing cell, a switch in the class of antibody being synthesized
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...

: The process by which a IgM or IgD producing B lymphocyte switches to produce one of the secondary immunoglobulins (IgG, IgA or IgE) with the same antigen binding specificity.

Class switching
Isotype or class switching is a biological process occurring after activation of the B cell, which allows the cell to produce different classes of antibody (IgA, IgE, or IgG).

antibody variable regions; that is, to accomplish V(D)J joining — (mice whose Ku80 genes have been knocked out cannot do this);
different antibody classes; that is, to accomplish .

Antibody class switching declines significantly once helper T cell function fails.

See also: See also: Human, Class, Antibody, Trans, Immune system

Biology  Class  Classical genetics

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