The four-chain structure of an antibody, or immunoglobulin, molecule. Y-shaped molecule is an area called the antigen-binding site, which is formed by a portion of the heavy and light chains premium vector by [email protected]

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illustration human health medicine medical structure molecule carbohydrate receptor Antibody antigen antibodies immunotherapy ig antigens immune system amino acid immunoglobulin igg heavy chain disulfide immunoglobulins light chain amino acid chain antibody molecule disulfide bond
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