Antigen and antibodies are two very different entities. In a nutshell, an antibody is a glycoprotein which is produced in response to and counteract a particular antigen. On the other hand, an antigen is a foreign substance (usually harmful) that induces an immune response, thereby stimulating the production of antibodies.
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Antigen |
Antibodies |
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Also called Immunogens |
Also called Immunoglobulins |
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Antigens are usually lipids. However, they can also be proteins, carbohydrates and nucleic acids |
All antibodies are proteins |
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Antigens cause allergic reactions or even illnesses |
Protects against the effects of the antigen either by lysis or immobilization of the particle |
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Epitopes are regions of the antigen where interacts with the antibodies |
Paratopes are variable regions of an antibody that binds to an epitope. |
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Antigens have origins outside the body |
Antibodies always originate within the body |
Related Links:
- More Difference Between
- What are Antigens? – Definition, Properties, Types, Structure
- Antibody – Structure, Types And Functions,
Frequently Asked Questions on Antigen and Antibody
What is the difference between antigen and antibody?
An antibody is a glycoprotein which is produced in response to and counteract a particular antigen. An antigen is a foreign substance that induces an immune response, thereby stimulating the production of antibodies.
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