Antibodies are, in many ways, the heartthrobs of the immune system - Katherine J. Wu


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10 Things to Know About Antibodies

While antibodies come in a few shapes and sizes, the most familiar of these are the Y-shaped proteins known as IgG antibodies (immunoglobulin G). The two upper arms of the Y have identical binding sites at their respective tips, and these sites are optimized to latch on to a specific foreign protein. The binding sites are also called the variable domains, because different antibodies have different tips to effectively target different threats. In the context of immunity, foreign proteins are collectively known as antigens.

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Last Updated : Sunday, September 18, 2022