An antigen is anything recognized by your immune system. Antigen tests diagnose viral infections, monitor certain illnesses or look for stem cell compatibility.

In immunology, an antigen (Ag) is a molecule, moiety, foreign particulate matter, or an allergen, such as pollen, that can bind to a specific antibody or T-cell receptor. [1] . The presence of antigens in the body may trigger an immune response. [2]

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 …

2023年3月30日 · Antigens are molecules or molecular structures that are foreign to the body and generally induce an immune reaction in the form of the production of antibodies against them. In simple words, antigens can be anything that doesn’t belong to the body and are foreign.

2023年5月24日 · What is an antigen? A simple definition is that an antigen refers to any substance that triggers an immune response. This response is intended to naturally protect the body from harmful entities, such as disease-causing microbes and neoplastic growth.

2024年1月16日 · The antigen acts as an antibody generator, and it gets eliminated (along with the infectious agent or the cancer cell) by the body's immune system. Antigens are key players in body immunity and play a crucial role in the prevention and elimination of diseases.

An antigen is a large protein molecule capable of inducing an immune response in the body by the production of antibodies. Explore its types, properties and structure at BYJU'S.

2023年7月8日 · 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.

2023年10月25日 · 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. The term “antigen” is a shortened term for ANTI body GEN erating substance.

2025年3月14日 · Any foreign material—usually of a complex nature and often a protein—that binds specifically to a receptor molecule made by lymphocytes is called an antigen.