ANATOMY

Detailed explanation-1: -For this reason, most of what we know about the B-cell receptor comes from the study of antibodies. Antibody molecules are roughly Y-shaped molecules consisting of three equal-sized portions, loosely connected by a flexible tether.

Detailed explanation-2: -An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses. The antibody recognizes a unique molecule of the pathogen, called an antigen.

Detailed explanation-3: -Antibodies are Y-shaped proteins made in great abundance by our immune system. 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).

Detailed explanation-4: -Antibodies are specialized, Y-shaped proteins that bind like a lock-and-key to the body’s foreign invaders-whether they are viruses (opens in new tab), bacteria, fungi or parasites.