unit 2 definitions Flashcards
immunogen
substance CAPABLE of inducing immune response (stimulates)
–>CREATES immune response
antigen
substance that interacts with B cell receptor, T cell receptor, or antibody
hapten
molecule too small to be immunogenic so it attaches carrier molecule (which allows it)
epitope
antigenic determinant or binding site on antigen
agretope
valence
number of epitopes an antigen carries
antigenicity
total capacity of antigen to bind to antibody (DOES NOT MEAN IMMUNOGENICITY BECAUSE Ag-Ab BINDING DOES NOT ALWAYS RESULT IN IMMUNE RESPONSE)
immunogenicity
ability or capacity to stimulate immune response
heterophile antigens
similar antigens in structure, but from a different species
antibody
immunoglobulins produced in response to antigens
allotype
multiple alleles for the same antibody
idiotype
unique amino acid sequence of heavy and light chain domains
isotype
classes of antibody (IgG, IgM, IgD, IgA, IgE)
hybridoma
hybrid cell that combines B cells and myeloma cells