An antibody (Ab), also known as an immunoglobulin (Ig), is a large Y-shaped protein produced by B-cells that is used by the immune system to identify and neutralize foreign objects such as bacteria and viruses. The antibody recognizes a unique part of the foreign target, called an antigen. Each tip of the "Y" of an antibody contains a paratope (a structure analogous to a lock) that is specific for one particular epitope (similarly analogous to a key) on an antigen, allowing these two structures to bind together with precision. Using this binding mechanism, an antibody can tag a microbe or an infected cell for attack by other parts of the immune system, or can neutralize its target directly (for example, by blocking a part of a microbe that is essential for its invasion and survival). The production of antibodies is the main function of the humoral immune system.Welcome to Global institute of medical sciences. A Place for Focussed and Integrated Coaching providing in depth Knowledge of medical subject preparing students to face various medical examinations with ease. A place where learning is fun. A common platform for All Medicine students who require mbbs tuitions, USMLE coaching,plab training and Medical PG Aspirants.www.mbbstuitions.comwww.usmleindia.comwww.gims-org.com
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