antibody immunoglobulin molecule function chains
antibody classes structure igg functions immunoglobulin chain isotypes type molecular weight abundant biology
antibody antibodies structure types immune antigen binding blood variable heavy constant light regions chains structures anti biology response cell region
antibody antibodies definition monoclonal anti body illustration review primary genome peer open
antibody antibodies functions shape formats valued engineered
igm igg antibody iga antibodies immunoglobulins ige classes igd five britannica biochemistry