What are Antibodies

Antibodies are crucial proteins in the immune system, acting as warriors against harmful invaders called antigens. They circulate in the bloodstream, identifying and neutralizing antigens like viruses, bacteria, and allergens. Structurally, antibodies are Y-shaped proteins with specific binding sites that match antigens, similar to a lock and key. This specificity allows them to neutralize antigens or tag them for attack by other immune components. The immune system's diversity of antibodies enables it to recognize a wide range of antigens. There are five immunoglobulin isotopes in mammals, each directing specific immune responses. Antibodies can also be cloned in labs for research and medical use.

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