Question: what is immunoglobulin g subclass 1?
Answer: Immunoglobulin G (IgG) is the main type of immunoglobulin (also called antibody) in the blood, which helps the body to fight bacterial infections and prevent viral infections. It is made up of four different types called IgG subclasses, known as IgG1, IgG2, IgG3 and IgG4.