What is an Antigen?

An antigen is a large molecular protein that stimulates our immune system (specifically activating lymphocytes, which are the body’s infection-fighting white blood cells) to produce antibodies against it. 

Generally, there are two main divisions of antigens, and they are:-

1. Foreign antigens (or heteroantigens)- They originates from outside the body.

For example- Virus, Bacteria, Protozoa, certain proteins in foods, and red blood cells from other individuals.

Tutorialspoint

e

Updated on: 27-Mar-2023

14 Views

Kickstart Your Career

Get certified by completing the course

Get Started