Assertion: antibody's antigen | /r/HasProperty | substance
Facets:
Source sentences:
text: Antigen, substance that is capable of stimulating an immune response, specifically activating lymphocytes, which are the body’s infection-fighting white blood cells.
text: An antigen is any substance that when introduced into the blood or tissue induces the production of antibodies.
text: But just to review, these are Y-shaped proteins your body makes in response to an antigen, which is a pathogen, allergen, or other substance your body perceives as a threat.
text: The tests are chemical reactions to antigens, which are substances that provoke an immune response.