Question

Describe the structure of antibody molecule. Add a note on its function.

Answer 1

Antibody (Ab) also know as Immunoglobulin (Ig) is the large Y shaped protein produced by the body’s immune system when it detects harmful substances, called antigens like bacteria and viruses. The production of antibodies is a major function of the immune system and is carried out by a type of white blood cell called a B cell (B lymphocyte), differentiated B cells called plasma cells. The produced antibodies bind to specific antigens express in external factors and cancer cells.Antibodies are heavy (~150 kDa) globular plasma proteins. The basic structure of all antibodies are same.