Antigens are substances that provoke an immune response (they're the ultimate target for the immune system). Antibodies are simply proteins that are secreted as a result of the antigen provoked immune response. In short, antigens cause the disease and antibodies cure it.
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Let's start with pathogen. A pathogen is any organism capable of producing disease.
An antigen refers to the protein on the surface of a cell (bacterium, fungus or virus) that our bodies recognize as a foreign substance and triggers the immune system into producing antibodies specific to that antigen. This means that if in the future the same antigen is again introduced, our immune system will recognize, remember and produce the right antibodies to "deal" with the intruders.
Now it's easier to see the relationship between the two. Pathogens have antigens on their surface. The relationship also explains the difference.
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An antigen is a substance/molecule that, when introduced into the body, triggers the production of an antibody by the immune system, which will then kill or neutralize the antigen that is recognized as a foreign and potentially harmful invader. These invaders can be molecules such as pollen or cells such as bacteria. The term originally came from antibody generator.
An antibody is a glycoprotein that is produced by plasma cells. It consists of heavy chains and light chains.
An antigen is a molecule that interacts with an antibody (or T-Cell). When the antigen interaction induces an immune response it is known as an immunogen.
Antigen is a substance that when introduced into the body stimulates the production of an antibody. Antigens include toxins, bacteria, foreign blood cells, and the cells of transplanted organs.
Agglutinogens are
1. any substance that, acting as an antigen, stimulates the production of agglutinin.
2. the particulate antigen used in conducting agglutination tests.
Antibody
epitopes on the antigen while the paratopes on the antibody
No. An antigen is something that an antibody will inactive. It is an antibody inducing agent.
Basically to explain this, an antigen is any type of pathogen that causes disease, while an antibody is something that combats against the antigen.
Antigen is the opposite of antibody.
Surface antigen
An antibody reacts to the specific antigen it is made to attach to. It is like the lock and key model; it locks onto the antigen.
When an antibody attaches onto an antigen it destroys the antigen to help your body fight off a disease.
Polyclonal antibody
An antigen is a substance that can invoke an immune response. While an antibody is the immune system's response to an antigen. Antibodies, act by directly neutralizing the antigen and/or bind to the antigen and signaling marcophages to phagocytose the antigen.
Antigen binding site or epitope is a part of an antigen that is recognized by the antibody. Paratope is a part of an antibody that binds on epitope.
which is specific to a particular antibody which is specific to a particular antibody which is specific to a particular antibody