IgM antibodies are much more efficient than IgG at activating the complement cascade. However, under certain circumstances, IgG antibodies will activate the complement pathway. One example of a situation in which IgG binding to its antigen will not trigger the complement cascade is when the IgG antibodies are neutralizing a bacterial toxin protein by blocking the receptor-attachment site on the toxin. the IgG antibodies are binding self-antigens, such as chromatin released from dead cells. the IgG antibodies bind to a bacterial surface by recognizing a repetitive polysaccharide component of the bacterial capsule. the IgG antibodies bind to a viral capsid protein that is present in more than 100 copies on the viral particle surface.
IgM antibodies are much more efficient than IgG at activating the complement cascade. However, under certain circumstances, IgG antibodies will activate the complement pathway. One example of a situation in which IgG binding to its antigen will not trigger the complement cascade is when the IgG antibodies are neutralizing a bacterial toxin protein by blocking the receptor-attachment site on the toxin. the IgG antibodies are binding self-antigens, such as chromatin released from dead cells. the IgG antibodies bind to a bacterial surface by recognizing a repetitive polysaccharide component of the bacterial capsule. the IgG antibodies bind to a viral capsid protein that is present in more than 100 copies on the viral particle surface.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:IgM antibodies are much more efficient than IgG at activating the complement cascade. However, under certain circumstances, IgG
antibodies will activate the complement pathway. One example of a situation in which IgG binding to its antigen will not trigger the
complement cascade is when
the IgG antibodies are neutralizing a bacterial toxin protein by blocking the receptor-attachment site on the toxin.
the IgG antibodies are binding self-antigens, such as chromatin released from dead cells.
the IgG antibodies bind to a bacterial surface by recognizing a repetitive polysaccharide component of the bacterial capsule.
the IgG antibodies bind to a viral capsid protein that is present in more than 100 copies on the viral particle surface.
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