Antigen - Wikipedia At the molecular level, an antigen can be characterized by its ability to bind to an antibody's paratopes Different antibodies have the potential to discriminate among specific epitopes present on the antigen surface
Antigen | Definition, Function, Types, Facts | Britannica Antigen, substance that is capable of stimulating an immune response, specifically activating lymphocytes, which are the body’s infection-fighting white blood cells In general, two main divisions of antigens are recognized: foreign antigens (or heteroantigens) and autoantigens (or self-antigens)
Antigen Definition, Function, and Types An antigen is a molecule or particle, often found on the surface of cells, viruses, or bacteria, that triggers an immune response because the body recognizes it as foreign or non-self
Antigens: Types, How They Work, Testing, and More An antigen is a molecule that may be recognized by the immune system and trigger an immune response by activating leukocytes (white blood cells) that fight disease
Antigen: MedlinePlus Medical Encyclopedia An antigen is any substance that causes your immune system to produce antibodies against it This means your immune system does not recognize the substance, and is trying to fight it off
What Are Antigens and Antibodies? - sciencenewstoday. org The term “antigen” is short for antibody generator, which offers the first clue about its purpose Antigens are molecular structures, often proteins or polysaccharides, that are found on the surface of pathogens such as viruses, bacteria, and fungi