what are the different types of antigens
pathogens (viruses, bacteria, parasites)
vaccines
transfusions
transplantation
what are antigens
molecules that react with antibodies or B and T cells
mostly proteins but can be other molecules
what is an immunogenic antigen
antigen that can trigger an immune response
what is the antigen’s bonding site
antigenic determinant (epitope)
what are the antibody and lymphocyte’s binding site
antigen binding site (paratope)