What is Antibody?
An antibody, also known as immunoglobulin, is a protein produced by the immune system in response to the presence of foreign substances called antigens. These antigens can be bacteria, viruses, toxins, or other harmful invaders. Antibodies are Y-shaped molecules designed to specifically recognize and bind to antigens, marking them for destruction by other immune cells.
They play a role in the body’s defence mechanism by helping in neutralization, opsonization, and elimination of pathogens. Antibodies come in various types, including IgG, IgM, IgA, IgE, and IgD, each with specific functions unique to fight different types of threats.
Types of Antibody and Functions
Types of antibodies include IgA, IgD, IgE, IgG, and IgM. These various types of antibodies and functions help the immune system recognize and neutralize pathogens, toxins, and other foreign substances in the body. These antibodies protect against infections and diseases. In this article, we will cover the types of antibodies, their functions, and their structures in detail.
Table of Content
- What is Antibody?
- Structure of Antibody
- Types of Antibodies and Their Functions
- IgG (Immunoglobulin G)
- IgM (Immunoglobulin M)
- IgA (Immunoglobulin A)
- IgE (Immunoglobulin E)
- IgD (Immunoglobulin D)
- Antibody Diversity and Specificity
- Important Points and Facts about Antibody