Specificity of antibodies
By binding to specific antigens, antibodies eliminate foreign substances
When a pathogen such as a harmful bacterium or virus enters the body, the variable region of the antibody binds to the pathogen and eventually causing a variety of actions such as eliminating the pathogen.
Because one antibody only recognizes a specific antigen, antibodies that attack cancer cells, for example, do not attack normal cells. This is called the “specificity” of an antibody toward that antigen.
In this way, antibodies eliminate pathogens that are harmful to the human body by specifically recognizing and identifying bacteria and viruses.
