关键的区别——IgM vs免疫球蛋白免疫球蛋白M (IgM)and Immunoglobulin G (IgG) are antibodies or immunoglobulin (Ig) proteins produced by the immune system to fight against the infections and destroy antigens. IgM is a pentameric molecule that appears in the early stage of infection and it has ten antigen binding sites. IgG is […]