Which immunoglobulin class has a dimeric structure with a secretory component? igm iga ige igg?

2 answers:

7 0

The answer is IgA. The immunoglobulin can occur as a monomer or dimer. The dimeric form is called secretory-IgA because it is also secreted by glands that produce saliva, tears, sweat, and in the lumen of the gastrointestinal tract. It is the most secreted Immunoglobulin.

adell [148]4 years ago

7 0

The answer is immunoglobulin A (IgA).
Immunoglobulin A is an antibody that plays a crucial role in the immune function of mucous membranes. It has two sub classes that is the IgA1 and IgA2 and can be produced as a monomeric as well as a dimeric form. The dimeric form is the most prevalent and is also called secretory IgA. Secretory component is a proteolytic cleavage product of the polymeric immunoglobulin receptor which remains associated with the dimeric IgA in sero-mucus secretions. The secretory component protects IgA antibodies from degradation by the gastric acids and enzymes of the digestive system.

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