G

What are the functions of immunoglobulin G? Immunoglobulin G is an important component of the specific immune system. It binds antigens (characteristic surface structures) of pathogens and thus marks them for certain white blood cells (leukocytes). These then engulf and eliminate the pathogen. In addition, IgG supports the complement system, which initiates the decomposition (lysis) … Immunoglobulin G (IgG): What the Lab Value Means