Foreign substances in the body that are too small to start an immune response by themselves are called hapten .
- Antigens are compounds, typically proteins, found on the surface of bacteria, fungi, viruses, or cells.
- Antigens can also include nonliving things including poisons, chemicals, medications, and foreign objects (like a splinter).
- Antigen-containing compounds are recognized by the immune system, which then attempts to destroy them.
What is a hapten in immunology?
Hapten, also spelled haptene, small molecule that stimulates the production of antibody molecules only when conjugated to a larger molecule, called a carrier molecule. Related Topics: epitope antigen.
What is the difference between antigen and hapten?
- An antigen is a complete molecule that can initiate an immune response on its own, whereas a hapten is an unfinished molecule that is incapable of initiating an immunological response on its own.
- Two forms of immunogens that can cause immunological reactions are antigen and hapten.
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