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IgA constitutes approximately 15% of the immunoglobulins within the body. Although it is found to some degree in the blood, it is present primarily in the secretions of the respiratory and gastrointestinal tract, in saliva, colostrum.

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Q: What is an IgA antibody?
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Related questions

Which antibody is a dimer?

IgA


Which antibody is present in sebum?

antibody IgA is found in sebum


What is the predominant antibody in mucus and saliva and tears and milk?

IgA


What type of antibody is inflexible igG igM igA igD or igE?

Ig A


The antibody type that is made in the greatest concentration upon a second challenge by an Ag include?

IgA


What class of antibodies is mainly found in sweat tears breast milk and GI secretions?

IgA antibody, found in mucous membrane secretions, mother's breast milk, etc.


Which antibody class neutralizes viruses in the intestinal tract?

I would assume IgA class antibodies. The intestinal tract is lined with mucous membranes and the IgA class is primarily secreted through mucous.


What are the classes of antibodies?

There are five immunoglobulin classes (isotypes) of antibody molecules found in serum: IgG, IgM, IgA, IgE, and IgD. IgA (immunoglobulin A) IgD (immunoglobulin D) IgE (immunoglobulin E) IgG (immunoglobulin G) IgM (immunoglobulin M)


Does an antigen cause an allergic reaction?

Only if the person is already allergic to that antigen. Not if they are immune to the antigen. The word antigen refers to the protein that joins with the antibody. If the antibody is of the allergic type (IgE) then an allergic reaction will happen and if the antibody is of the immune type (IgG, IgM or IgA) then there won't be an allergic reaction.


How to use immunoglobulins in a sentence?

"There are five classes of immunoglobulins IgA, IgD, IgE, IgG, and IgM." OR "This antibody, also called an immunoglobulin, may damage the nerve fibers"


What antibody is produced in a reaction to an allergen?

The antibody is specific to the antigen (allergen). Different antibodies are produced at different times of exposure (IgM=acute; IgG=longterm) or in different systems of the body (IgA is produced in the gut).


Some people eith a deficit of IgA exhibit recurrent paranasal sinus and respiratory tract infections Explain these symptoms?

Immunoglobulin A (IgA) is an antibody playing a critical role in mucosal immunity. More IgA is produced in mucosal linings than all other types of antibody combined. In its secretory form, it is the main immunoglobulin found in mucous secretions, including tears, saliva, colostrum, intestinal juice, vaginal fluid and secretions from the prostate and respiratory epithelium. Because it is resistant to degradation by enzymes, secretory IgA can survive in harsh environments such as the digestive and respiratory tracts, to provide protection against microbes that multiply in body secretions.Because the respiratory tract and sinus cavities are mucosal entities, the infections manifest here.