Class 12 Biology Human Health Disease Structure of antibody

Structure of antibody

Each antibody molecule has four peptide chains, two long chains and two short chains arranged in a Y shaped structure.

Two long chains are called heavy chains and two short chains are called light chains, hence an antibody is represented as H2L2.

Antibodies are also called as immunoglobulins (Ig).

Different types of antibodies are produced in our bodies which are IgA, IgM, IgE, IgG.

Fig. an antibody molecule  

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