What are antigens and how are they different from antibiotics ?
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Antigens are foreign particles, usually proteins, which are capable of generating an immune response in the body, a property known as immunogenicity. This immune response consists of specific antibodies which are generated by plasma cells as a result of exposure to a specific epitope presented by the antigen.
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antigens are toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.
Antigen
These are substances that provoke an immune response (they attack the immune system). Although a substance that induces a specific immune response is usually called an antigen, it is more appropriately called an immunogen. Antigens can be bacteria, viruses, or fungi that cause infection and disease. They can also be substances, called allergens, that bring on an allergic reaction. Common allergens include dust, pollen, animal dander, bee stings, or certain foods. To protect against infectious disease, the immune system must be able to recognize bacteria, bacterial products, fungi, parasites, and viruses as immunogens.
Antibodies
These are Glycoproteins that are secreted by immune cells (plasma cells) in response to foreign substance (antigen). When an antigen enters the body, it stimulates the immune system to produce antibodies. (The immune system is the body's natural defense system.) The antibodies attach, or bind, themselves to the antigen and inactivate it. Every healthy adult's body has small amounts of thousands of different antibodies. Each one is highly specialized to recognize just one kind of foreign substance. Antibody molecules are typically Y-shaped, with a binding site on each arm of the Y. The binding sites of each antibody, in turn, have a specific shape. Only antigens that match this shape will fit into them. The role of antibodies is to bind with antigens and inactivate them
Antigen
These are substances that provoke an immune response (they attack the immune system). Although a substance that induces a specific immune response is usually called an antigen, it is more appropriately called an immunogen. Antigens can be bacteria, viruses, or fungi that cause infection and disease. They can also be substances, called allergens, that bring on an allergic reaction. Common allergens include dust, pollen, animal dander, bee stings, or certain foods. To protect against infectious disease, the immune system must be able to recognize bacteria, bacterial products, fungi, parasites, and viruses as immunogens.
Antibodies
These are Glycoproteins that are secreted by immune cells (plasma cells) in response to foreign substance (antigen). When an antigen enters the body, it stimulates the immune system to produce antibodies. (The immune system is the body's natural defense system.) The antibodies attach, or bind, themselves to the antigen and inactivate it. Every healthy adult's body has small amounts of thousands of different antibodies. Each one is highly specialized to recognize just one kind of foreign substance. Antibody molecules are typically Y-shaped, with a binding site on each arm of the Y. The binding sites of each antibody, in turn, have a specific shape. Only antigens that match this shape will fit into them. The role of antibodies is to bind with antigens and inactivate them
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