Question

How many types of antibodies are there in our body?​

Answer 1

Explanation:

The 5 types - IgG, IgM, IgA, IgD, IgE - (isotypes) are classified according to the type of heavy chain constant region, and are distributed and function differently in the body. IgG is the main antibody in blood.

Answer 2

Answer:

Types of antibodies and their structures :

Serum containing antigen-specific antibodies is called antiserum. There are five classes of immunoglobulins including IgM, IgG, IgA, IgD, and IgE.

The basic structure of all antibodies are same. There are four polypeptide chains held together by disulfide bonds. These four polypeptide chains form a symmetrical molecular structure.

There are two identical halves with the antigen binding sites between the ends of the heavy and light chains on both sides. There is a hinge in the center between heavy chains to allow flexibility to the protein. The two light chains are identical to each other. They contain around 220 amino acids while the heave chains have 440 amino acids.

There are two types of light chain among all classes of immunoglobulin, a lambda chain and a kappa chain. Both are similar in function. Each type of immunoglobulin has a different type of heavy chain.