Epitope, it is the part of the antigen that is recognized and binds by the antibodies.
the constant region
It causes pathogens to stick together.
Antigen binding site or epitope is a part of an antigen that is recognized by the antibody. Paratope is a part of an antibody that binds on epitope.
precipitation
It is the place where antibody binds after recognizing the antigen
An antigen is actually foreign or toxic to the human body. It stimulates an adaptive immune response and binds to a antibody.
To enhance the function of phagocytosis. The antibody binds to the antigen (on the organism). The antibody also binds to the phagocyte thus facilitating the coming together of the antibody and phagocyte and phagocytosis can then proceed.
The protective antigen is the antigen an antibody binds to killing the pathogen. It more or less is the "kill spot" for the pathogen. Also known as protective epitope.
The Fab portion of the antibody is what determines the idiotype. The Fab portion consists of both a heavy and light chain and is connected to the Fc region (isotype). Every B cell will express a different Fab structure and in a single B cell it will produce only the same Fab.
Antibody
epitopes on the antigen while the paratopes on the antibody
Antigen binding is a region on an antibody that binds to antigens. Antigen binding is composed of one constant and one variable domain of each of the heavy and the light chain, and these domains shape the antigen binding site at the amino terminal end of the monomer.
C stands for constant or conserved, V stands for variable. The variable part is what latches on to the antigen.