Antibodies or immunoglobulins (Ig) are of five different isotypes. This classification is on the basis of their H chains. Let’s look at the different types of immunoglobulins and their functions. IgM IgM is the first antibody produced in response to a microbial attack by B cells. It is the largest antibody and is found in a pentameric form. It circulates in the blood and lymph and constitutes 6% of the total antibody content in the serum. It is involved in agglutination and opsonization ... Learn what antibodies are, how they protect you from foreign substances and what types of antibodies exist. Find out how monoclonal antibodies, COVID antibodies and thyroglobulin antibodies can affect your health. Antibodies are protein molecules naturally produced or synthesized by the B-lymphocytes. They are also known as Immunoglobulins. Antibody - Structure, Classes, Function: Each antibody molecule is essentially identical to the antigen receptor of the B cell that produced it. The basic structure of these proteins consists of two pairs of polypeptide chains (lengths of amino acids linked by peptide bonds) that form a flexible Y shape. The stem of the Y consists of one end of each of two identical heavy chains, while each arm is composed of the remaining portion of a heavy chain plus a smaller protein called the light ...
